20215275

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{11719}}^1$

素因数の和:11755

約数の個数: 24

約数和(自身を含む): 34878720

約数和(自身を除く): 14663445

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 11719, 35157, 58595, 175785, 269537, 292975, 808611, 878925, 1347685, 4043055, 6738425, 20215275]

約数ペア:

[(1, 20215275), (3, 6738425), (5, 4043055), (15, 1347685), (23, 878925), (25, 808611), (69, 292975), (75, 269537), (115, 175785), (345, 58595), (575, 35157), (1725, 11719)]