18807340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1151}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 23770580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1151, 1634, 2302, 3268, 4085, 4604, 5755, 8170, 11510, 16340, 21869, 23020, 43738, 49493, 87476, 98986, 109345, 197972, 218690, 247465, 437380, 494930, 940367, 989860, 1880734, 3761468, 4701835, 9403670, 18807340]

約数ペア:

[(1, 18807340), (2, 9403670), (4, 4701835), (5, 3761468), (10, 1880734), (19, 989860), (20, 940367), (38, 494930), (43, 437380), (76, 247465), (86, 218690), (95, 197972), (172, 109345), (190, 98986), (215, 87476), (380, 49493), (430, 43738), (817, 23020), (860, 21869), (1151, 16340), (1634, 11510), (2302, 8170), (3268, 5755), (4085, 4604)]