20203875

素因数分解:

$3^2\times 5^3\times {\mathrm{17959}}^1$

素因数の和:17980

約数の個数: 24

約数和(自身を含む): 36422880

約数和(自身を除く): 16219005

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 1125, 17959, 53877, 89795, 161631, 269385, 448975, 808155, 1346925, 2244875, 4040775, 6734625, 20203875]

約数ペア:

[(1, 20203875), (3, 6734625), (5, 4040775), (9, 2244875), (15, 1346925), (25, 808155), (45, 448975), (75, 269385), (125, 161631), (225, 89795), (375, 53877), (1125, 17959)]