128874760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{460267}}^1$

素因数の和:460285

約数の個数: 32

約数和(自身を含む): 331392960

約数和(自身を除く): 202518200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 460267, 920534, 1841068, 2301335, 3221869, 3682136, 4602670, 6443738, 9205340, 12887476, 16109345, 18410680, 25774952, 32218690, 64437380, 128874760]

約数ペア:

[(1, 128874760), (2, 64437380), (4, 32218690), (5, 25774952), (7, 18410680), (8, 16109345), (10, 12887476), (14, 9205340), (20, 6443738), (28, 4602670), (35, 3682136), (40, 3221869), (56, 2301335), (70, 1841068), (140, 920534), (280, 460267)]