20409625

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:298

約数の個数: 32

約数和(自身を含む): 27555840

約数和(自身を除く): 7146215

約数列:

[1, 5, 23, 25, 31, 115, 125, 155, 229, 575, 713, 775, 1145, 2875, 3565, 3875, 5267, 5725, 7099, 17825, 26335, 28625, 35495, 89125, 131675, 163277, 177475, 658375, 816385, 887375, 4081925, 20409625]

約数ペア:

[(1, 20409625), (5, 4081925), (23, 887375), (25, 816385), (31, 658375), (115, 177475), (125, 163277), (155, 131675), (229, 89125), (575, 35495), (713, 28625), (775, 26335), (1145, 17825), (2875, 7099), (3565, 5725), (3875, 5267)]