64313840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25933}}^1$

素因数の和:25977

約数の個数: 40

約数和(自身を含む): 154359168

約数和(自身を除く): 90045328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 25933, 51866, 103732, 129665, 207464, 259330, 414928, 518660, 803923, 1037320, 1607846, 2074640, 3215692, 4019615, 6431384, 8039230, 12862768, 16078460, 32156920, 64313840]

約数ペア:

[(1, 64313840), (2, 32156920), (4, 16078460), (5, 12862768), (8, 8039230), (10, 6431384), (16, 4019615), (20, 3215692), (31, 2074640), (40, 1607846), (62, 1037320), (80, 803923), (124, 518660), (155, 414928), (248, 259330), (310, 207464), (496, 129665), (620, 103732), (1240, 51866), (2480, 25933)]