20565375

素因数分解:

$3^1\times 5^3\times {\mathrm{173}}^1\times {\mathrm{317}}^1$

素因数の和:508

約数の個数: 32

約数和(自身を含む): 34527168

約数和(自身を除く): 13961793

約数列:

[1, 3, 5, 15, 25, 75, 125, 173, 317, 375, 519, 865, 951, 1585, 2595, 4325, 4755, 7925, 12975, 21625, 23775, 39625, 54841, 64875, 118875, 164523, 274205, 822615, 1371025, 4113075, 6855125, 20565375]

約数ペア:

[(1, 20565375), (3, 6855125), (5, 4113075), (15, 1371025), (25, 822615), (75, 274205), (125, 164523), (173, 118875), (317, 64875), (375, 54841), (519, 39625), (865, 23775), (951, 21625), (1585, 12975), (2595, 7925), (4325, 4755)]