64311920

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{21727}}^1$

素因数の和:21777

約数の個数: 40

約数和(自身を含む): 153573504

約数和(自身を除く): 89261584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 21727, 43454, 86908, 108635, 173816, 217270, 347632, 434540, 803899, 869080, 1607798, 1738160, 3215596, 4019495, 6431192, 8038990, 12862384, 16077980, 32155960, 64311920]

約数ペア:

[(1, 64311920), (2, 32155960), (4, 16077980), (5, 12862384), (8, 8038990), (10, 6431192), (16, 4019495), (20, 3215596), (37, 1738160), (40, 1607798), (74, 869080), (80, 803899), (148, 434540), (185, 347632), (296, 217270), (370, 173816), (592, 108635), (740, 86908), (1480, 43454), (2960, 21727)]