403020920

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{42157}}^1$

素因数の和:42407

約数の個数: 32

約数和(自身を含む): 910612800

約数和(自身を除く): 507591880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 9560, 42157, 84314, 168628, 210785, 337256, 421570, 843140, 1686280, 10075523, 20151046, 40302092, 50377615, 80604184, 100755230, 201510460, 403020920]

約数ペア:

[(1, 403020920), (2, 201510460), (4, 100755230), (5, 80604184), (8, 50377615), (10, 40302092), (20, 20151046), (40, 10075523), (239, 1686280), (478, 843140), (956, 421570), (1195, 337256), (1912, 210785), (2390, 168628), (4780, 84314), (9560, 42157)]