20880125

素因数分解:

$5^3\times 7^3\times {\mathrm{487}}^1$

素因数の和:523

約数の個数: 32

約数和(自身を含む): 30451200

約数和(自身を除く): 9571075

約数列:

[1, 5, 7, 25, 35, 49, 125, 175, 245, 343, 487, 875, 1225, 1715, 2435, 3409, 6125, 8575, 12175, 17045, 23863, 42875, 60875, 85225, 119315, 167041, 426125, 596575, 835205, 2982875, 4176025, 20880125]

約数ペア:

[(1, 20880125), (5, 4176025), (7, 2982875), (25, 835205), (35, 596575), (49, 426125), (125, 167041), (175, 119315), (245, 85225), (343, 60875), (487, 42875), (875, 23863), (1225, 17045), (1715, 12175), (2435, 8575), (3409, 6125)]