31401968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{677}}^1$

素因数の和:921

約数の個数: 40

約数和(自身を含む): 65912448

約数和(自身を除く): 34510480

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 223, 446, 677, 892, 1354, 1784, 2708, 2899, 3568, 5416, 5798, 8801, 10832, 11596, 17602, 23192, 35204, 46384, 70408, 140816, 150971, 301942, 603884, 1207768, 1962623, 2415536, 3925246, 7850492, 15700984, 31401968]

約数ペア:

[(1, 31401968), (2, 15700984), (4, 7850492), (8, 3925246), (13, 2415536), (16, 1962623), (26, 1207768), (52, 603884), (104, 301942), (208, 150971), (223, 140816), (446, 70408), (677, 46384), (892, 35204), (1354, 23192), (1784, 17602), (2708, 11596), (2899, 10832), (3568, 8801), (5416, 5798)]