1857505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^2$

素因数の和:117

約数の個数: 24

約数和(自身を含む): 2605176

約数和(自身を除く): 747671

約数列:

[1, 5, 13, 17, 41, 65, 85, 205, 221, 533, 697, 1105, 1681, 2665, 3485, 8405, 9061, 21853, 28577, 45305, 109265, 142885, 371501, 1857505]

約数ペア:

[(1, 1857505), (5, 371501), (13, 142885), (17, 109265), (41, 45305), (65, 28577), (85, 21853), (205, 9061), (221, 8405), (533, 3485), (697, 2665), (1105, 1681)]