64207120

素因数分解:

$2^4\times 5^1\times {\mathrm{802589}}^1$

素因数の和:802602

約数の個数: 20

約数和(自身を含む): 149281740

約数和(自身を除く): 85074620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 802589, 1605178, 3210356, 4012945, 6420712, 8025890, 12841424, 16051780, 32103560, 64207120]

約数ペア:

[(1, 64207120), (2, 32103560), (4, 16051780), (5, 12841424), (8, 8025890), (10, 6420712), (16, 4012945), (20, 3210356), (40, 1605178), (80, 802589)]