163946960

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47659}}^1$

素因数の和:47715

約数の個数: 40

約数和(自身を含む): 390049440

約数和(自身を除く): 226102480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 47659, 95318, 190636, 238295, 381272, 476590, 762544, 953180, 1906360, 2049337, 3812720, 4098674, 8197348, 10246685, 16394696, 20493370, 32789392, 40986740, 81973480, 163946960]

約数ペア:

[(1, 163946960), (2, 81973480), (4, 40986740), (5, 32789392), (8, 20493370), (10, 16394696), (16, 10246685), (20, 8197348), (40, 4098674), (43, 3812720), (80, 2049337), (86, 1906360), (172, 953180), (215, 762544), (344, 476590), (430, 381272), (688, 238295), (860, 190636), (1720, 95318), (3440, 47659)]