200820890

素因数分解:

$2^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{123203}}^1$

素因数の和:123373

約数の個数: 16

約数和(自身を含む): 363698208

約数和(自身を除く): 162877318

約数列:

[1, 2, 5, 10, 163, 326, 815, 1630, 123203, 246406, 616015, 1232030, 20082089, 40164178, 100410445, 200820890]

約数ペア:

[(1, 200820890), (2, 100410445), (5, 40164178), (10, 20082089), (163, 1232030), (326, 616015), (815, 246406), (1630, 123203)]