261859585

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{18229}}^1$

素因数の和:18277

約数の個数: 24

約数和(自身を含む): 360297720

約数和(自身を除く): 98438135

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 2873, 14365, 18229, 91145, 236977, 309893, 1184885, 1549465, 3080701, 4028609, 15403505, 20143045, 52371917, 261859585]

約数ペア:

[(1, 261859585), (5, 52371917), (13, 20143045), (17, 15403505), (65, 4028609), (85, 3080701), (169, 1549465), (221, 1184885), (845, 309893), (1105, 236977), (2873, 91145), (14365, 18229)]