13657240

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{811}}^1$

素因数の和:1243

約数の個数: 32

約数和(自身を含む): 30839760

約数和(自身を除く): 17182520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 811, 842, 1622, 1684, 2105, 3244, 3368, 4055, 4210, 6488, 8110, 8420, 16220, 16840, 32440, 341431, 682862, 1365724, 1707155, 2731448, 3414310, 6828620, 13657240]

約数ペア:

[(1, 13657240), (2, 6828620), (4, 3414310), (5, 2731448), (8, 1707155), (10, 1365724), (20, 682862), (40, 341431), (421, 32440), (811, 16840), (842, 16220), (1622, 8420), (1684, 8110), (2105, 6488), (3244, 4210), (3368, 4055)]