42478900

素因数分解:

$2^2\times 5^2\times {\mathrm{421}}^1\times {\mathrm{1009}}^1$

素因数の和:1444

約数の個数: 36

約数和(自身を含む): 92489740

約数和(自身を除く): 50010840

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 421, 842, 1009, 1684, 2018, 2105, 4036, 4210, 5045, 8420, 10090, 10525, 20180, 21050, 25225, 42100, 50450, 100900, 424789, 849578, 1699156, 2123945, 4247890, 8495780, 10619725, 21239450, 42478900]

約数ペア:

[(1, 42478900), (2, 21239450), (4, 10619725), (5, 8495780), (10, 4247890), (20, 2123945), (25, 1699156), (50, 849578), (100, 424789), (421, 100900), (842, 50450), (1009, 42100), (1684, 25225), (2018, 21050), (2105, 20180), (4036, 10525), (4210, 10090), (5045, 8420)]