16220425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1721}}^1$

素因数の和:1773

約数の個数: 24

約数和(自身を含む): 22420440

約数和(自身を除く): 6200015

約数列:

[1, 5, 13, 25, 29, 65, 145, 325, 377, 725, 1721, 1885, 8605, 9425, 22373, 43025, 49909, 111865, 249545, 559325, 648817, 1247725, 3244085, 16220425]

約数ペア:

[(1, 16220425), (5, 3244085), (13, 1247725), (25, 648817), (29, 559325), (65, 249545), (145, 111865), (325, 49909), (377, 43025), (725, 22373), (1721, 9425), (1885, 8605)]