18181875

素因数分解:

$3^1\times 5^4\times {\mathrm{9697}}^1$

素因数の和:9720

約数の個数: 20

約数和(自身を含む): 30296552

約数和(自身を除く): 12114677

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 9697, 29091, 48485, 145455, 242425, 727275, 1212125, 3636375, 6060625, 18181875]

約数ペア:

[(1, 18181875), (3, 6060625), (5, 3636375), (15, 1212125), (25, 727275), (75, 242425), (125, 145455), (375, 48485), (625, 29091), (1875, 9697)]