2581139640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1\times {\mathrm{787}}^1$

素因数の和:1133

約数の個数: 128

約数和(自身を含む): 7847723520

約数和(自身を除く): 5266583880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 151, 181, 302, 362, 453, 543, 604, 724, 755, 787, 905, 906, 1086, 1208, 1448, 1510, 1574, 1810, 1812, 2172, 2265, 2361, 2715, 3020, 3148, 3620, 3624, 3935, 4344, 4530, 4722, 5430, 6040, 6296, 7240, 7870, 9060, 9444, 10860, 11805, 15740, 18120, 18888, 21720, 23610, 27331, 31480, 47220, 54662, 81993, 94440, 109324, 118837, 136655, 142447, 163986, 218648, 237674, 273310, 284894, 327972, 356511, 409965, 427341, 475348, 546620, 569788, 594185, 655944, 712235, 713022, 819930, 854682, 950696, 1093240, 1139576, 1188370, 1424470, 1426044, 1639860, 1709364, 1782555, 2136705, 2376740, 2848940, 2852088, 3279720, 3418728, 3565110, 4273410, 4753480, 5697880, 7130220, 8546820, 14260440, 17093640, 21509497, 43018994, 64528491, 86037988, 107547485, 129056982, 172075976, 215094970, 258113964, 322642455, 430189940, 516227928, 645284910, 860379880, 1290569820, 2581139640]

約数ペア:

[(1, 2581139640), (2, 1290569820), (3, 860379880), (4, 645284910), (5, 516227928), (6, 430189940), (8, 322642455), (10, 258113964), (12, 215094970), (15, 172075976), (20, 129056982), (24, 107547485), (30, 86037988), (40, 64528491), (60, 43018994), (120, 21509497), (151, 17093640), (181, 14260440), (302, 8546820), (362, 7130220), (453, 5697880), (543, 4753480), (604, 4273410), (724, 3565110), (755, 3418728), (787, 3279720), (905, 2852088), (906, 2848940), (1086, 2376740), (1208, 2136705), (1448, 1782555), (1510, 1709364), (1574, 1639860), (1810, 1426044), (1812, 1424470), (2172, 1188370), (2265, 1139576), (2361, 1093240), (2715, 950696), (3020, 854682), (3148, 819930), (3620, 713022), (3624, 712235), (3935, 655944), (4344, 594185), (4530, 569788), (4722, 546620), (5430, 475348), (6040, 427341), (6296, 409965), (7240, 356511), (7870, 327972), (9060, 284894), (9444, 273310), (10860, 237674), (11805, 218648), (15740, 163986), (18120, 142447), (18888, 136655), (21720, 118837), (23610, 109324), (27331, 94440), (31480, 81993), (47220, 54662)]