20919375

素因数分解:

$3^2\times 5^4\times {\mathrm{3719}}^1$

素因数の和:3745

約数の個数: 30

約数和(自身を含む): 37769160

約数和(自身を除く): 16849785

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 625, 1125, 1875, 3719, 5625, 11157, 18595, 33471, 55785, 92975, 167355, 278925, 464875, 836775, 1394625, 2324375, 4183875, 6973125, 20919375]

約数ペア:

[(1, 20919375), (3, 6973125), (5, 4183875), (9, 2324375), (15, 1394625), (25, 836775), (45, 464875), (75, 278925), (125, 167355), (225, 92975), (375, 55785), (625, 33471), (1125, 18595), (1875, 11157), (3719, 5625)]