20520295

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{3229}}^1$

素因数の和:3306

約数の個数: 16

約数和(自身を含む): 26046720

約数和(自身を除く): 5526425

約数列:

[1, 5, 31, 41, 155, 205, 1271, 3229, 6355, 16145, 100099, 132389, 500495, 661945, 4104059, 20520295]

約数ペア:

[(1, 20520295), (5, 4104059), (31, 661945), (41, 500495), (155, 132389), (205, 100099), (1271, 16145), (3229, 6355)]