20128486572

素因数分解:

$2^2\times 3^2\times {\mathrm{421}}^1\times {\mathrm{1328087}}^1$

素因数の和:1328518

約数の個数: 36

約数和(自身を含む): 51001235376

約数和(自身を除く): 30872748804

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 421, 842, 1263, 1684, 2526, 3789, 5052, 7578, 15156, 1328087, 2656174, 3984261, 5312348, 7968522, 11952783, 15937044, 23905566, 47811132, 559124627, 1118249254, 1677373881, 2236498508, 3354747762, 5032121643, 6709495524, 10064243286, 20128486572]

約数ペア:

[(1, 20128486572), (2, 10064243286), (3, 6709495524), (4, 5032121643), (6, 3354747762), (9, 2236498508), (12, 1677373881), (18, 1118249254), (36, 559124627), (421, 47811132), (842, 23905566), (1263, 15937044), (1684, 11952783), (2526, 7968522), (3789, 5312348), (5052, 3984261), (7578, 2656174), (15156, 1328087)]