18045380

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20983}}^1$

素因数の和:21035

約数の個数: 24

約数和(自身を含む): 38778432

約数和(自身を除く): 20733052

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 20983, 41966, 83932, 104915, 209830, 419660, 902269, 1804538, 3609076, 4511345, 9022690, 18045380]

約数ペア:

[(1, 18045380), (2, 9022690), (4, 4511345), (5, 3609076), (10, 1804538), (20, 902269), (43, 419660), (86, 209830), (172, 104915), (215, 83932), (430, 41966), (860, 20983)]