64211675

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{21227}}^1$

素因数の和:21259

約数の個数: 18

約数和(自身を含む): 87523044

約数和(自身を除く): 23311369

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 21227, 106135, 233497, 530675, 1167485, 2568467, 5837425, 12842335, 64211675]

約数ペア:

[(1, 64211675), (5, 12842335), (11, 5837425), (25, 2568467), (55, 1167485), (121, 530675), (275, 233497), (605, 106135), (3025, 21227)]