20427250

素因数分解:

$2^1\times 5^3\times {\mathrm{101}}^1\times {\mathrm{809}}^1$

素因数の和:927

約数の個数: 32

約数和(自身を含む): 38666160

約数和(自身を除く): 18238910

約数列:

[1, 2, 5, 10, 25, 50, 101, 125, 202, 250, 505, 809, 1010, 1618, 2525, 4045, 5050, 8090, 12625, 20225, 25250, 40450, 81709, 101125, 163418, 202250, 408545, 817090, 2042725, 4085450, 10213625, 20427250]

約数ペア:

[(1, 20427250), (2, 10213625), (5, 4085450), (10, 2042725), (25, 817090), (50, 408545), (101, 202250), (125, 163418), (202, 101125), (250, 81709), (505, 40450), (809, 25250), (1010, 20225), (1618, 12625), (2525, 8090), (4045, 5050)]