1880125

素因数分解:

$5^3\times {\mathrm{13}}^2\times {\mathrm{89}}^1$

素因数の和:130

約数の個数: 24

約数和(自身を含む): 2569320

約数和(自身を除く): 689195

約数列:

[1, 5, 13, 25, 65, 89, 125, 169, 325, 445, 845, 1157, 1625, 2225, 4225, 5785, 11125, 15041, 21125, 28925, 75205, 144625, 376025, 1880125]

約数ペア:

[(1, 1880125), (5, 376025), (13, 144625), (25, 75205), (65, 28925), (89, 21125), (125, 15041), (169, 11125), (325, 5785), (445, 4225), (845, 2225), (1157, 1625)]