15780505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{14281}}^1$

素因数の和:14316

約数の個数: 16

約数和(自身を含む): 21594384

約数和(自身を除く): 5813879

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 14281, 71405, 185653, 242777, 928265, 1213885, 3156101, 15780505]

約数ペア:

[(1, 15780505), (5, 3156101), (13, 1213885), (17, 928265), (65, 242777), (85, 185653), (221, 71405), (1105, 14281)]