13480405

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:549

約数の個数: 24

約数和(自身を含む): 18125280

約数和(自身を除く): 4644875

約数列:

[1, 5, 17, 19, 85, 95, 289, 323, 491, 1445, 1615, 2455, 5491, 8347, 9329, 27455, 41735, 46645, 141899, 158593, 709495, 792965, 2696081, 13480405]

約数ペア:

[(1, 13480405), (5, 2696081), (17, 792965), (19, 709495), (85, 158593), (95, 141899), (289, 46645), (323, 41735), (491, 27455), (1445, 9329), (1615, 8347), (2455, 5491)]