20177380

素因数分解:

$2^2\times 5^1\times {\mathrm{971}}^1\times {\mathrm{1039}}^1$

素因数の和:2019

約数の個数: 24

約数和(自身を含む): 42456960

約数和(自身を除く): 22279580

約数列:

[1, 2, 4, 5, 10, 20, 971, 1039, 1942, 2078, 3884, 4156, 4855, 5195, 9710, 10390, 19420, 20780, 1008869, 2017738, 4035476, 5044345, 10088690, 20177380]

約数ペア:

[(1, 20177380), (2, 10088690), (4, 5044345), (5, 4035476), (10, 2017738), (20, 1008869), (971, 20780), (1039, 19420), (1942, 10390), (2078, 9710), (3884, 5195), (4156, 4855)]