406505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:424

約数の個数: 16

約数和(自身を含む): 561600

約数和(自身を除く): 155095

約数列:

[1, 5, 11, 19, 55, 95, 209, 389, 1045, 1945, 4279, 7391, 21395, 36955, 81301, 406505]

約数ペア:

[(1, 406505), (5, 81301), (11, 36955), (19, 21395), (55, 7391), (95, 4279), (209, 1945), (389, 1045)]