19937898240

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{1151}}^1$

素因数の和:1535

約数の個数: 288

約数和(自身を含む): 68832239616

約数和(自身を除く): 48894341376

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 347, 384, 390, 416, 480, 520, 624, 640, 694, 768, 780, 832, 960, 1040, 1041, 1151, 1248, 1280, 1388, 1560, 1664, 1735, 1920, 2080, 2082, 2302, 2496, 2776, 3120, 3328, 3453, 3470, 3840, 4160, 4164, 4511, 4604, 4992, 5205, 5552, 5755, 6240, 6906, 6940, 8320, 8328, 9022, 9208, 9984, 10410, 11104, 11510, 12480, 13533, 13812, 13880, 14963, 16640, 16656, 17265, 18044, 18416, 20820, 22208, 22555, 23020, 24960, 27066, 27624, 27760, 29926, 33312, 34530, 36088, 36832, 41640, 44416, 44889, 45110, 46040, 49920, 54132, 55248, 55520, 59852, 66624, 67665, 69060, 72176, 73664, 74815, 83280, 88832, 89778, 90220, 92080, 108264, 110496, 111040, 119704, 133248, 135330, 138120, 144352, 147328, 149630, 166560, 179556, 180440, 184160, 216528, 220992, 222080, 224445, 239408, 266496, 270660, 276240, 288704, 294656, 299260, 333120, 359112, 360880, 368320, 399397, 433056, 441984, 444160, 448890, 478816, 541320, 552480, 577408, 598520, 666240, 718224, 721760, 736640, 798794, 866112, 883968, 897780, 957632, 1082640, 1104960, 1154816, 1197040, 1198191, 1332480, 1436448, 1443520, 1473280, 1597588, 1732224, 1795560, 1915264, 1996985, 2165280, 2209920, 2394080, 2396382, 2872896, 2887040, 3195176, 3464448, 3591120, 3830528, 3993970, 4330560, 4419840, 4788160, 4792764, 5192161, 5745792, 5774080, 5990955, 6390352, 7182240, 7987940, 8661120, 9576320, 9585528, 10384322, 11491584, 11981910, 12780704, 14364480, 15576483, 15975880, 17322240, 19152640, 19171056, 20768644, 23963820, 25561408, 25960805, 28728960, 31152966, 31951760, 38342112, 41537288, 47927640, 51122816, 51921610, 57457920, 62305932, 63903520, 76684224, 77882415, 83074576, 95855280, 102245632, 103843220, 124611864, 127807040, 153368448, 155764830, 166149152, 191710560, 207686440, 249223728, 255614080, 306736896, 311529660, 332298304, 383421120, 415372880, 498447456, 511228160, 623059320, 664596608, 766842240, 830745760, 996894912, 1246118640, 1329193216, 1533684480, 1661491520, 1993789824, 2492237280, 3322983040, 3987579648, 4984474560, 6645966080, 9968949120, 19937898240]

約数ペア:

[(1, 19937898240), (2, 9968949120), (3, 6645966080), (4, 4984474560), (5, 3987579648), (6, 3322983040), (8, 2492237280), (10, 1993789824), (12, 1661491520), (13, 1533684480), (15, 1329193216), (16, 1246118640), (20, 996894912), (24, 830745760), (26, 766842240), (30, 664596608), (32, 623059320), (39, 511228160), (40, 498447456), (48, 415372880), (52, 383421120), (60, 332298304), (64, 311529660), (65, 306736896), (78, 255614080), (80, 249223728), (96, 207686440), (104, 191710560), (120, 166149152), (128, 155764830), (130, 153368448), (156, 127807040), (160, 124611864), (192, 103843220), (195, 102245632), (208, 95855280), (240, 83074576), (256, 77882415), (260, 76684224), (312, 63903520), (320, 62305932), (347, 57457920), (384, 51921610), (390, 51122816), (416, 47927640), (480, 41537288), (520, 38342112), (624, 31951760), (640, 31152966), (694, 28728960), (768, 25960805), (780, 25561408), (832, 23963820), (960, 20768644), (1040, 19171056), (1041, 19152640), (1151, 17322240), (1248, 15975880), (1280, 15576483), (1388, 14364480), (1560, 12780704), (1664, 11981910), (1735, 11491584), (1920, 10384322), (2080, 9585528), (2082, 9576320), (2302, 8661120), (2496, 7987940), (2776, 7182240), (3120, 6390352), (3328, 5990955), (3453, 5774080), (3470, 5745792), (3840, 5192161), (4160, 4792764), (4164, 4788160), (4511, 4419840), (4604, 4330560), (4992, 3993970), (5205, 3830528), (5552, 3591120), (5755, 3464448), (6240, 3195176), (6906, 2887040), (6940, 2872896), (8320, 2396382), (8328, 2394080), (9022, 2209920), (9208, 2165280), (9984, 1996985), (10410, 1915264), (11104, 1795560), (11510, 1732224), (12480, 1597588), (13533, 1473280), (13812, 1443520), (13880, 1436448), (14963, 1332480), (16640, 1198191), (16656, 1197040), (17265, 1154816), (18044, 1104960), (18416, 1082640), (20820, 957632), (22208, 897780), (22555, 883968), (23020, 866112), (24960, 798794), (27066, 736640), (27624, 721760), (27760, 718224), (29926, 666240), (33312, 598520), (34530, 577408), (36088, 552480), (36832, 541320), (41640, 478816), (44416, 448890), (44889, 444160), (45110, 441984), (46040, 433056), (49920, 399397), (54132, 368320), (55248, 360880), (55520, 359112), (59852, 333120), (66624, 299260), (67665, 294656), (69060, 288704), (72176, 276240), (73664, 270660), (74815, 266496), (83280, 239408), (88832, 224445), (89778, 222080), (90220, 220992), (92080, 216528), (108264, 184160), (110496, 180440), (111040, 179556), (119704, 166560), (133248, 149630), (135330, 147328), (138120, 144352)]