12780116

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{1109}}^1$

素因数の和:1223

約数の個数: 24

約数和(自身を含む): 23247840

約数和(自身を除く): 10467724

約数列:

[1, 2, 4, 43, 67, 86, 134, 172, 268, 1109, 2218, 2881, 4436, 5762, 11524, 47687, 74303, 95374, 148606, 190748, 297212, 3195029, 6390058, 12780116]

約数ペア:

[(1, 12780116), (2, 6390058), (4, 3195029), (43, 297212), (67, 190748), (86, 148606), (134, 95374), (172, 74303), (268, 47687), (1109, 11524), (2218, 5762), (2881, 4436)]