64757980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{462557}}^1$

素因数の和:462573

約数の個数: 24

約数和(自身を含む): 155419488

約数和(自身を除く): 90661508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 462557, 925114, 1850228, 2312785, 3237899, 4625570, 6475798, 9251140, 12951596, 16189495, 32378990, 64757980]

約数ペア:

[(1, 64757980), (2, 32378990), (4, 16189495), (5, 12951596), (7, 9251140), (10, 6475798), (14, 4625570), (20, 3237899), (28, 2312785), (35, 1850228), (70, 925114), (140, 462557)]