30520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1$

素因数の和:127

約数の個数: 32

約数和(自身を含む): 79200

約数和(自身を除く): 48680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 140, 218, 280, 436, 545, 763, 872, 1090, 1526, 2180, 3052, 3815, 4360, 6104, 7630, 15260, 30520]

約数ペア:

[(1, 30520), (2, 15260), (4, 7630), (5, 6104), (7, 4360), (8, 3815), (10, 3052), (14, 2180), (20, 1526), (28, 1090), (35, 872), (40, 763), (56, 545), (70, 436), (109, 280), (140, 218)]