12712240

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1213}}^1$

素因数の和:1357

約数の個数: 40

約数和(自身を含む): 29806128

約数和(自身を除く): 17093888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1213, 1310, 2096, 2426, 2620, 4852, 5240, 6065, 9704, 10480, 12130, 19408, 24260, 48520, 97040, 158903, 317806, 635612, 794515, 1271224, 1589030, 2542448, 3178060, 6356120, 12712240]

約数ペア:

[(1, 12712240), (2, 6356120), (4, 3178060), (5, 2542448), (8, 1589030), (10, 1271224), (16, 794515), (20, 635612), (40, 317806), (80, 158903), (131, 97040), (262, 48520), (524, 24260), (655, 19408), (1048, 12130), (1213, 10480), (1310, 9704), (2096, 6065), (2426, 5240), (2620, 4852)]