644103628

素因数分解:

$2^2\times 7^2\times {\mathrm{163}}^1\times {\mathrm{20161}}^1$

素因数の和:20342

約数の個数: 36

約数和(自身を含む): 1319320632

約数和(自身を除く): 675217004

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 163, 196, 326, 652, 1141, 2282, 4564, 7987, 15974, 20161, 31948, 40322, 80644, 141127, 282254, 564508, 987889, 1975778, 3286243, 3951556, 6572486, 13144972, 23003701, 46007402, 92014804, 161025907, 322051814, 644103628]

約数ペア:

[(1, 644103628), (2, 322051814), (4, 161025907), (7, 92014804), (14, 46007402), (28, 23003701), (49, 13144972), (98, 6572486), (163, 3951556), (196, 3286243), (326, 1975778), (652, 987889), (1141, 564508), (2282, 282254), (4564, 141127), (7987, 80644), (15974, 40322), (20161, 31948)]