18036920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40993}}^1$

素因数の和:41015

約数の個数: 32

約数和(自身を含む): 44273520

約数和(自身を除く): 26236600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 40993, 81986, 163972, 204965, 327944, 409930, 450923, 819860, 901846, 1639720, 1803692, 2254615, 3607384, 4509230, 9018460, 18036920]

約数ペア:

[(1, 18036920), (2, 9018460), (4, 4509230), (5, 3607384), (8, 2254615), (10, 1803692), (11, 1639720), (20, 901846), (22, 819860), (40, 450923), (44, 409930), (55, 327944), (88, 204965), (110, 163972), (220, 81986), (440, 40993)]