20124425

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1129}}^1$

素因数の和:1193

約数の個数: 24

約数和(自身を含む): 26903040

約数和(自身を除く): 6778615

約数列:

[1, 5, 23, 25, 31, 115, 155, 575, 713, 775, 1129, 3565, 5645, 17825, 25967, 28225, 34999, 129835, 174995, 649175, 804977, 874975, 4024885, 20124425]

約数ペア:

[(1, 20124425), (5, 4024885), (23, 874975), (25, 804977), (31, 649175), (115, 174995), (155, 129835), (575, 34999), (713, 28225), (775, 25967), (1129, 17825), (3565, 5645)]