20169268

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{421}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 42537600

約数和(自身を除く): 22368332

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 59, 116, 118, 203, 236, 406, 413, 421, 812, 826, 842, 1652, 1684, 1711, 2947, 3422, 5894, 6844, 11788, 11977, 12209, 23954, 24418, 24839, 47908, 48836, 49678, 85463, 99356, 170926, 173873, 341852, 347746, 695492, 720331, 1440662, 2881324, 5042317, 10084634, 20169268]

約数ペア:

[(1, 20169268), (2, 10084634), (4, 5042317), (7, 2881324), (14, 1440662), (28, 720331), (29, 695492), (58, 347746), (59, 341852), (116, 173873), (118, 170926), (203, 99356), (236, 85463), (406, 49678), (413, 48836), (421, 47908), (812, 24839), (826, 24418), (842, 23954), (1652, 12209), (1684, 11977), (1711, 11788), (2947, 6844), (3422, 5894)]