19101875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{2351}}^1$

素因数の和:2384

約数の個数: 20

約数和(自身を含む): 25716768

約数和(自身を除く): 6614893

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 2351, 8125, 11755, 30563, 58775, 152815, 293875, 764075, 1469375, 3820375, 19101875]

約数ペア:

[(1, 19101875), (5, 3820375), (13, 1469375), (25, 764075), (65, 293875), (125, 152815), (325, 58775), (625, 30563), (1625, 11755), (2351, 8125)]