1998408020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{14274343}}^1$

素因数の和:14274359

約数の個数: 24

約数和(自身を含む): 4796179584

約数和(自身を除く): 2797771564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 14274343, 28548686, 57097372, 71371715, 99920401, 142743430, 199840802, 285486860, 399681604, 499602005, 999204010, 1998408020]

約数ペア:

[(1, 1998408020), (2, 999204010), (4, 499602005), (5, 399681604), (7, 285486860), (10, 199840802), (14, 142743430), (20, 99920401), (28, 71371715), (35, 57097372), (70, 28548686), (140, 14274343)]