643205882

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1\times {\mathrm{821}}^1$

素因数の和:1222

約数の個数: 32

約数和(自身を含む): 1065312000

約数和(自身を除く): 422106118

約数列:

[1, 2, 11, 22, 149, 239, 298, 478, 821, 1639, 1642, 2629, 3278, 5258, 9031, 18062, 35611, 71222, 122329, 196219, 244658, 391721, 392438, 783442, 1345619, 2158409, 2691238, 4316818, 29236631, 58473262, 321602941, 643205882]

約数ペア:

[(1, 643205882), (2, 321602941), (11, 58473262), (22, 29236631), (149, 4316818), (239, 2691238), (298, 2158409), (478, 1345619), (821, 783442), (1639, 392438), (1642, 391721), (2629, 244658), (3278, 196219), (5258, 122329), (9031, 71222), (18062, 35611)]