20927125

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 7377515

約数列:

[1, 5, 23, 25, 29, 115, 125, 145, 251, 575, 667, 725, 1255, 2875, 3335, 3625, 5773, 6275, 7279, 16675, 28865, 31375, 36395, 83375, 144325, 167417, 181975, 721625, 837085, 909875, 4185425, 20927125]

約数ペア:

[(1, 20927125), (5, 4185425), (23, 909875), (25, 837085), (29, 721625), (115, 181975), (125, 167417), (145, 144325), (251, 83375), (575, 36395), (667, 31375), (725, 28865), (1255, 16675), (2875, 7279), (3335, 6275), (3625, 5773)]