12520305

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13249}}^1$

素因数の和:13270

約数の個数: 32

約数和(自身を含む): 25440000

約数和(自身を除く): 12919695

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 13249, 39747, 66245, 92743, 119241, 198735, 278229, 357723, 463715, 596205, 834687, 1391145, 1788615, 2504061, 4173435, 12520305]

約数ペア:

[(1, 12520305), (3, 4173435), (5, 2504061), (7, 1788615), (9, 1391145), (15, 834687), (21, 596205), (27, 463715), (35, 357723), (45, 278229), (63, 198735), (105, 119241), (135, 92743), (189, 66245), (315, 39747), (945, 13249)]