68969968

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{557}}^1$

素因数の和:745

約数の個数: 40

約数和(自身を含む): 137000160

約数和(自身を除く): 68030192

約数列:

[1, 2, 4, 8, 16, 71, 109, 142, 218, 284, 436, 557, 568, 872, 1114, 1136, 1744, 2228, 4456, 7739, 8912, 15478, 30956, 39547, 60713, 61912, 79094, 121426, 123824, 158188, 242852, 316376, 485704, 632752, 971408, 4310623, 8621246, 17242492, 34484984, 68969968]

約数ペア:

[(1, 68969968), (2, 34484984), (4, 17242492), (8, 8621246), (16, 4310623), (71, 971408), (109, 632752), (142, 485704), (218, 316376), (284, 242852), (436, 158188), (557, 123824), (568, 121426), (872, 79094), (1114, 61912), (1136, 60713), (1744, 39547), (2228, 30956), (4456, 15478), (7739, 8912)]