20452870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3881}}^1$

素因数の和:3936

約数の個数: 32

約数和(自身を含む): 40248576

約数和(自身を除く): 19795706

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 155, 170, 310, 527, 1054, 2635, 3881, 5270, 7762, 19405, 38810, 65977, 120311, 131954, 240622, 329885, 601555, 659770, 1203110, 2045287, 4090574, 10226435, 20452870]

約数ペア:

[(1, 20452870), (2, 10226435), (5, 4090574), (10, 2045287), (17, 1203110), (31, 659770), (34, 601555), (62, 329885), (85, 240622), (155, 131954), (170, 120311), (310, 65977), (527, 38810), (1054, 19405), (2635, 7762), (3881, 5270)]