81338335

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{983}}^1$

素因数の和:1087

約数の個数: 32

約数和(自身を含む): 112412160

約数和(自身を除く): 31073825

約数列:

[1, 5, 13, 19, 65, 67, 95, 247, 335, 871, 983, 1235, 1273, 4355, 4915, 6365, 12779, 16549, 18677, 63895, 65861, 82745, 93385, 242801, 329305, 856193, 1214005, 1251359, 4280965, 6256795, 16267667, 81338335]

約数ペア:

[(1, 81338335), (5, 16267667), (13, 6256795), (19, 4280965), (65, 1251359), (67, 1214005), (95, 856193), (247, 329305), (335, 242801), (871, 93385), (983, 82745), (1235, 65861), (1273, 63895), (4355, 18677), (4915, 16549), (6365, 12779)]