19680960

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:135

約数の個数: 224

約数和(自身を含む): 71688960

約数和(自身を除く): 52008000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 19, 20, 24, 26, 30, 32, 38, 39, 40, 48, 52, 57, 60, 64, 65, 76, 78, 80, 83, 95, 96, 104, 114, 120, 130, 152, 156, 160, 166, 190, 192, 195, 208, 228, 240, 247, 249, 260, 285, 304, 312, 320, 332, 380, 390, 415, 416, 456, 480, 494, 498, 520, 570, 608, 624, 664, 741, 760, 780, 830, 832, 912, 960, 988, 996, 1040, 1079, 1140, 1216, 1235, 1245, 1248, 1328, 1482, 1520, 1560, 1577, 1660, 1824, 1976, 1992, 2080, 2158, 2280, 2470, 2490, 2496, 2656, 2964, 3040, 3120, 3154, 3237, 3320, 3648, 3705, 3952, 3984, 4160, 4316, 4560, 4731, 4940, 4980, 5312, 5395, 5928, 6080, 6240, 6308, 6474, 6640, 7410, 7885, 7904, 7968, 8632, 9120, 9462, 9880, 9960, 10790, 11856, 12480, 12616, 12948, 13280, 14820, 15770, 15808, 15936, 16185, 17264, 18240, 18924, 19760, 19920, 20501, 21580, 23655, 23712, 25232, 25896, 26560, 29640, 31540, 32370, 34528, 37848, 39520, 39840, 41002, 43160, 47310, 47424, 50464, 51792, 59280, 61503, 63080, 64740, 69056, 75696, 79040, 79680, 82004, 86320, 94620, 100928, 102505, 103584, 118560, 123006, 126160, 129480, 151392, 164008, 172640, 189240, 205010, 207168, 237120, 246012, 252320, 258960, 302784, 307515, 328016, 345280, 378480, 410020, 492024, 504640, 517920, 615030, 656032, 756960, 820040, 984048, 1035840, 1230060, 1312064, 1513920, 1640080, 1968096, 2460120, 3280160, 3936192, 4920240, 6560320, 9840480, 19680960]

約数ペア:

[(1, 19680960), (2, 9840480), (3, 6560320), (4, 4920240), (5, 3936192), (6, 3280160), (8, 2460120), (10, 1968096), (12, 1640080), (13, 1513920), (15, 1312064), (16, 1230060), (19, 1035840), (20, 984048), (24, 820040), (26, 756960), (30, 656032), (32, 615030), (38, 517920), (39, 504640), (40, 492024), (48, 410020), (52, 378480), (57, 345280), (60, 328016), (64, 307515), (65, 302784), (76, 258960), (78, 252320), (80, 246012), (83, 237120), (95, 207168), (96, 205010), (104, 189240), (114, 172640), (120, 164008), (130, 151392), (152, 129480), (156, 126160), (160, 123006), (166, 118560), (190, 103584), (192, 102505), (195, 100928), (208, 94620), (228, 86320), (240, 82004), (247, 79680), (249, 79040), (260, 75696), (285, 69056), (304, 64740), (312, 63080), (320, 61503), (332, 59280), (380, 51792), (390, 50464), (415, 47424), (416, 47310), (456, 43160), (480, 41002), (494, 39840), (498, 39520), (520, 37848), (570, 34528), (608, 32370), (624, 31540), (664, 29640), (741, 26560), (760, 25896), (780, 25232), (830, 23712), (832, 23655), (912, 21580), (960, 20501), (988, 19920), (996, 19760), (1040, 18924), (1079, 18240), (1140, 17264), (1216, 16185), (1235, 15936), (1245, 15808), (1248, 15770), (1328, 14820), (1482, 13280), (1520, 12948), (1560, 12616), (1577, 12480), (1660, 11856), (1824, 10790), (1976, 9960), (1992, 9880), (2080, 9462), (2158, 9120), (2280, 8632), (2470, 7968), (2490, 7904), (2496, 7885), (2656, 7410), (2964, 6640), (3040, 6474), (3120, 6308), (3154, 6240), (3237, 6080), (3320, 5928), (3648, 5395), (3705, 5312), (3952, 4980), (3984, 4940), (4160, 4731), (4316, 4560)]