13638640

素因数分解:

$2^4\times 5^1\times {\mathrm{170483}}^1$

素因数の和:170496

約数の個数: 20

約数和(自身を含む): 31710024

約数和(自身を除く): 18071384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 170483, 340966, 681932, 852415, 1363864, 1704830, 2727728, 3409660, 6819320, 13638640]

約数ペア:

[(1, 13638640), (2, 6819320), (4, 3409660), (5, 2727728), (8, 1704830), (10, 1363864), (16, 852415), (20, 681932), (40, 340966), (80, 170483)]