215548820

素因数分解:

$2^2\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{7649}}^1$

素因数の和:9067

約数の個数: 24

約数和(自身を含む): 453033000

約数和(自身を除く): 237484180

約数列:

[1, 2, 4, 5, 10, 20, 1409, 2818, 5636, 7045, 7649, 14090, 15298, 28180, 30596, 38245, 76490, 152980, 10777441, 21554882, 43109764, 53887205, 107774410, 215548820]

約数ペア:

[(1, 215548820), (2, 107774410), (4, 53887205), (5, 43109764), (10, 21554882), (20, 10777441), (1409, 152980), (2818, 76490), (5636, 38245), (7045, 30596), (7649, 28180), (14090, 15298)]