20318775

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{11779}}^1$

素因数の和:11815

約数の個数: 24

約数和(自身を含む): 35057280

約数和(自身を除く): 14738505

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 11779, 35337, 58895, 176685, 270917, 294475, 812751, 883425, 1354585, 4063755, 6772925, 20318775]

約数ペア:

[(1, 20318775), (3, 6772925), (5, 4063755), (15, 1354585), (23, 883425), (25, 812751), (69, 294475), (75, 270917), (115, 176685), (345, 58895), (575, 35337), (1725, 11779)]