261661920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2207}}^1$

素因数の和:2257

約数の個数: 192

約数和(自身を含む): 934778880

約数和(自身を除く): 673116960

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, 65, 76, 78, 80, 95, 96, 104, 114, 120, 130, 152, 156, 160, 190, 195, 208, 228, 240, 247, 260, 285, 304, 312, 380, 390, 416, 456, 480, 494, 520, 570, 608, 624, 741, 760, 780, 912, 988, 1040, 1140, 1235, 1248, 1482, 1520, 1560, 1824, 1976, 2080, 2207, 2280, 2470, 2964, 3040, 3120, 3705, 3952, 4414, 4560, 4940, 5928, 6240, 6621, 7410, 7904, 8828, 9120, 9880, 11035, 11856, 13242, 14820, 17656, 19760, 22070, 23712, 26484, 28691, 29640, 33105, 35312, 39520, 41933, 44140, 52968, 57382, 59280, 66210, 70624, 83866, 86073, 88280, 105936, 114764, 118560, 125799, 132420, 143455, 167732, 172146, 176560, 209665, 211872, 229528, 251598, 264840, 286910, 335464, 344292, 353120, 419330, 430365, 459056, 503196, 529680, 545129, 573820, 628995, 670928, 688584, 838660, 860730, 918112, 1006392, 1059360, 1090258, 1147640, 1257990, 1341856, 1377168, 1635387, 1677320, 1721460, 2012784, 2180516, 2295280, 2515980, 2725645, 2754336, 3270774, 3354640, 3442920, 4025568, 4361032, 4590560, 5031960, 5451290, 6541548, 6709280, 6885840, 8176935, 8722064, 10063920, 10902580, 13083096, 13771680, 16353870, 17444128, 20127840, 21805160, 26166192, 32707740, 43610320, 52332384, 65415480, 87220640, 130830960, 261661920]

約数ペア:

[(1, 261661920), (2, 130830960), (3, 87220640), (4, 65415480), (5, 52332384), (6, 43610320), (8, 32707740), (10, 26166192), (12, 21805160), (13, 20127840), (15, 17444128), (16, 16353870), (19, 13771680), (20, 13083096), (24, 10902580), (26, 10063920), (30, 8722064), (32, 8176935), (38, 6885840), (39, 6709280), (40, 6541548), (48, 5451290), (52, 5031960), (57, 4590560), (60, 4361032), (65, 4025568), (76, 3442920), (78, 3354640), (80, 3270774), (95, 2754336), (96, 2725645), (104, 2515980), (114, 2295280), (120, 2180516), (130, 2012784), (152, 1721460), (156, 1677320), (160, 1635387), (190, 1377168), (195, 1341856), (208, 1257990), (228, 1147640), (240, 1090258), (247, 1059360), (260, 1006392), (285, 918112), (304, 860730), (312, 838660), (380, 688584), (390, 670928), (416, 628995), (456, 573820), (480, 545129), (494, 529680), (520, 503196), (570, 459056), (608, 430365), (624, 419330), (741, 353120), (760, 344292), (780, 335464), (912, 286910), (988, 264840), (1040, 251598), (1140, 229528), (1235, 211872), (1248, 209665), (1482, 176560), (1520, 172146), (1560, 167732), (1824, 143455), (1976, 132420), (2080, 125799), (2207, 118560), (2280, 114764), (2470, 105936), (2964, 88280), (3040, 86073), (3120, 83866), (3705, 70624), (3952, 66210), (4414, 59280), (4560, 57382), (4940, 52968), (5928, 44140), (6240, 41933), (6621, 39520), (7410, 35312), (7904, 33105), (8828, 29640), (9120, 28691), (9880, 26484), (11035, 23712), (11856, 22070), (13242, 19760), (14820, 17656)]