20895100

素因数分解:

$2^2\times 5^2\times {\mathrm{223}}^1\times {\mathrm{937}}^1$

素因数の和:1174

約数の個数: 36

約数和(自身を含む): 45594304

約数和(自身を除く): 24699204

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 223, 446, 892, 937, 1115, 1874, 2230, 3748, 4460, 4685, 5575, 9370, 11150, 18740, 22300, 23425, 46850, 93700, 208951, 417902, 835804, 1044755, 2089510, 4179020, 5223775, 10447550, 20895100]

約数ペア:

[(1, 20895100), (2, 10447550), (4, 5223775), (5, 4179020), (10, 2089510), (20, 1044755), (25, 835804), (50, 417902), (100, 208951), (223, 93700), (446, 46850), (892, 23425), (937, 22300), (1115, 18740), (1874, 11150), (2230, 9370), (3748, 5575), (4460, 4685)]