201798890

素因数分解:

$2^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{123803}}^1$

素因数の和:123973

約数の個数: 16

約数和(自身を含む): 365469408

約数和(自身を除く): 163670518

約数列:

[1, 2, 5, 10, 163, 326, 815, 1630, 123803, 247606, 619015, 1238030, 20179889, 40359778, 100899445, 201798890]

約数ペア:

[(1, 201798890), (2, 100899445), (5, 40359778), (10, 20179889), (163, 1238030), (326, 619015), (815, 247606), (1630, 123803)]