56821660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{405869}}^1$

素因数の和:405885

約数の個数: 24

約数和(自身を含む): 136372320

約数和(自身を除く): 79550660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 405869, 811738, 1623476, 2029345, 2841083, 4058690, 5682166, 8117380, 11364332, 14205415, 28410830, 56821660]

約数ペア:

[(1, 56821660), (2, 28410830), (4, 14205415), (5, 11364332), (7, 8117380), (10, 5682166), (14, 4058690), (20, 2841083), (28, 2029345), (35, 1623476), (70, 811738), (140, 405869)]