208486045

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{223}}^1\times {\mathrm{647}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 267369984

約数和(自身を除く): 58883939

約数列:

[1, 5, 17, 85, 223, 289, 647, 1115, 1445, 3235, 3791, 10999, 18955, 54995, 64447, 144281, 186983, 322235, 721405, 934915, 2452777, 12263885, 41697209, 208486045]

約数ペア:

[(1, 208486045), (5, 41697209), (17, 12263885), (85, 2452777), (223, 934915), (289, 721405), (647, 322235), (1115, 186983), (1445, 144281), (3235, 64447), (3791, 54995), (10999, 18955)]