64212460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{246971}}^1$

素因数の和:246993

約数の個数: 24

約数和(自身を含む): 145219536

約数和(自身を除く): 81007076

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 246971, 493942, 987884, 1234855, 2469710, 3210623, 4939420, 6421246, 12842492, 16053115, 32106230, 64212460]

約数ペア:

[(1, 64212460), (2, 32106230), (4, 16053115), (5, 12842492), (10, 6421246), (13, 4939420), (20, 3210623), (26, 2469710), (52, 1234855), (65, 987884), (130, 493942), (260, 246971)]