1640984891

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{28669}}^1$

素因数の和:28743

約数の個数: 32

約数和(自身を含む): 2196351360

約数和(自身を除く): 555366469

約数列:

[1, 7, 13, 17, 37, 91, 119, 221, 259, 481, 629, 1547, 3367, 4403, 8177, 28669, 57239, 200683, 372697, 487373, 1060753, 2608879, 3411611, 6335849, 7425271, 13789789, 18032801, 44350943, 96528523, 126229607, 234426413, 1640984891]

約数ペア:

[(1, 1640984891), (7, 234426413), (13, 126229607), (17, 96528523), (37, 44350943), (91, 18032801), (119, 13789789), (221, 7425271), (259, 6335849), (481, 3411611), (629, 2608879), (1547, 1060753), (3367, 487373), (4403, 372697), (8177, 200683), (28669, 57239)]