20159188

素因数分解:

$2^2\times 7^2\times {\mathrm{163}}^1\times {\mathrm{631}}^1$

素因数の和:812

約数の個数: 36

約数和(自身を含む): 41355552

約数和(自身を除く): 21196364

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 163, 196, 326, 631, 652, 1141, 1262, 2282, 2524, 4417, 4564, 7987, 8834, 15974, 17668, 30919, 31948, 61838, 102853, 123676, 205706, 411412, 719971, 1439942, 2879884, 5039797, 10079594, 20159188]

約数ペア:

[(1, 20159188), (2, 10079594), (4, 5039797), (7, 2879884), (14, 1439942), (28, 719971), (49, 411412), (98, 205706), (163, 123676), (196, 102853), (326, 61838), (631, 31948), (652, 30919), (1141, 17668), (1262, 15974), (2282, 8834), (2524, 7987), (4417, 4564)]