28571640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{457}}^1\times {\mathrm{521}}^1$

素因数の和:992

約数の個数: 64

約数和(自身を含む): 86067360

約数和(自身を除く): 57495720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 457, 521, 914, 1042, 1371, 1563, 1828, 2084, 2285, 2605, 2742, 3126, 3656, 4168, 4570, 5210, 5484, 6252, 6855, 7815, 9140, 10420, 10968, 12504, 13710, 15630, 18280, 20840, 27420, 31260, 54840, 62520, 238097, 476194, 714291, 952388, 1190485, 1428582, 1904776, 2380970, 2857164, 3571455, 4761940, 5714328, 7142910, 9523880, 14285820, 28571640]

約数ペア:

[(1, 28571640), (2, 14285820), (3, 9523880), (4, 7142910), (5, 5714328), (6, 4761940), (8, 3571455), (10, 2857164), (12, 2380970), (15, 1904776), (20, 1428582), (24, 1190485), (30, 952388), (40, 714291), (60, 476194), (120, 238097), (457, 62520), (521, 54840), (914, 31260), (1042, 27420), (1371, 20840), (1563, 18280), (1828, 15630), (2084, 13710), (2285, 12504), (2605, 10968), (2742, 10420), (3126, 9140), (3656, 7815), (4168, 6855), (4570, 6252), (5210, 5484)]