12794752640

素因数分解:

$2^7\times 5^1\times {\mathrm{19991801}}^1$

素因数の和:19991820

約数の個数: 32

約数和(自身を含む): 30587457060

約数和(自身を除く): 17792704420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 19991801, 39983602, 79967204, 99959005, 159934408, 199918010, 319868816, 399836020, 639737632, 799672040, 1279475264, 1599344080, 2558950528, 3198688160, 6397376320, 12794752640]

約数ペア:

[(1, 12794752640), (2, 6397376320), (4, 3198688160), (5, 2558950528), (8, 1599344080), (10, 1279475264), (16, 799672040), (20, 639737632), (32, 399836020), (40, 319868816), (64, 199918010), (80, 159934408), (128, 99959005), (160, 79967204), (320, 39983602), (640, 19991801)]