18355960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{65557}}^1$

素因数の和:65575

約数の個数: 32

約数和(自身を含む): 47201760

約数和(自身を除く): 28845800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 65557, 131114, 262228, 327785, 458899, 524456, 655570, 917798, 1311140, 1835596, 2294495, 2622280, 3671192, 4588990, 9177980, 18355960]

約数ペア:

[(1, 18355960), (2, 9177980), (4, 4588990), (5, 3671192), (7, 2622280), (8, 2294495), (10, 1835596), (14, 1311140), (20, 917798), (28, 655570), (35, 524456), (40, 458899), (56, 327785), (70, 262228), (140, 131114), (280, 65557)]