20221875

素因数分解:

$3^2\times 5^5\times {\mathrm{719}}^1$

素因数の和:750

約数の個数: 36

約数和(自身を含む): 36560160

約数和(自身を除く): 16338285

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 625, 719, 1125, 1875, 2157, 3125, 3595, 5625, 6471, 9375, 10785, 17975, 28125, 32355, 53925, 89875, 161775, 269625, 449375, 808875, 1348125, 2246875, 4044375, 6740625, 20221875]

約数ペア:

[(1, 20221875), (3, 6740625), (5, 4044375), (9, 2246875), (15, 1348125), (25, 808875), (45, 449375), (75, 269625), (125, 161775), (225, 89875), (375, 53925), (625, 32355), (719, 28125), (1125, 17975), (1875, 10785), (2157, 9375), (3125, 6471), (3595, 5625)]