87668620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 208857600

約数和(自身を除く): 121188980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 73, 124, 130, 146, 149, 155, 260, 292, 298, 310, 365, 403, 596, 620, 730, 745, 806, 949, 1460, 1490, 1612, 1898, 1937, 2015, 2263, 2980, 3796, 3874, 4030, 4526, 4619, 4745, 7748, 8060, 9052, 9238, 9490, 9685, 10877, 11315, 18476, 18980, 19370, 21754, 22630, 23095, 29419, 38740, 43508, 45260, 46190, 54385, 58838, 60047, 92380, 108770, 117676, 120094, 141401, 147095, 217540, 240188, 282802, 294190, 300235, 337187, 565604, 588380, 600470, 674374, 707005, 1200940, 1348748, 1414010, 1685935, 2828020, 3371870, 4383431, 6743740, 8766862, 17533724, 21917155, 43834310, 87668620]

約数ペア:

[(1, 87668620), (2, 43834310), (4, 21917155), (5, 17533724), (10, 8766862), (13, 6743740), (20, 4383431), (26, 3371870), (31, 2828020), (52, 1685935), (62, 1414010), (65, 1348748), (73, 1200940), (124, 707005), (130, 674374), (146, 600470), (149, 588380), (155, 565604), (260, 337187), (292, 300235), (298, 294190), (310, 282802), (365, 240188), (403, 217540), (596, 147095), (620, 141401), (730, 120094), (745, 117676), (806, 108770), (949, 92380), (1460, 60047), (1490, 58838), (1612, 54385), (1898, 46190), (1937, 45260), (2015, 43508), (2263, 38740), (2980, 29419), (3796, 23095), (3874, 22630), (4030, 21754), (4526, 19370), (4619, 18980), (4745, 18476), (7748, 11315), (8060, 10877), (9052, 9685), (9238, 9490)]