1821796220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2938381}}^1$

素因数の和:2938421

約数の個数: 24

約数和(自身を含む): 3949185408

約数和(自身を除く): 2127389188

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2938381, 5876762, 11753524, 14691905, 29383810, 58767620, 91089811, 182179622, 364359244, 455449055, 910898110, 1821796220]

約数ペア:

[(1, 1821796220), (2, 910898110), (4, 455449055), (5, 364359244), (10, 182179622), (20, 91089811), (31, 58767620), (62, 29383810), (124, 14691905), (155, 11753524), (310, 5876762), (620, 2938381)]