199456420

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{41381}}^1$

素因数の和:41631

約数の個数: 24

約数和(自身を含む): 420606648

約数和(自身を除く): 221150228

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4820, 41381, 82762, 165524, 206905, 413810, 827620, 9972821, 19945642, 39891284, 49864105, 99728210, 199456420]

約数ペア:

[(1, 199456420), (2, 99728210), (4, 49864105), (5, 39891284), (10, 19945642), (20, 9972821), (241, 827620), (482, 413810), (964, 206905), (1205, 165524), (2410, 82762), (4820, 41381)]