18137020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4339}}^1$

素因数の和:4378

約数の個数: 48

約数和(自身を含む): 43747200

約数和(自身を除く): 25610180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4339, 8678, 17356, 21695, 43390, 47729, 82441, 86780, 95458, 164882, 190916, 238645, 329764, 412205, 477290, 824410, 906851, 954580, 1648820, 1813702, 3627404, 4534255, 9068510, 18137020]

約数ペア:

[(1, 18137020), (2, 9068510), (4, 4534255), (5, 3627404), (10, 1813702), (11, 1648820), (19, 954580), (20, 906851), (22, 824410), (38, 477290), (44, 412205), (55, 329764), (76, 238645), (95, 190916), (110, 164882), (190, 95458), (209, 86780), (220, 82441), (380, 47729), (418, 43390), (836, 21695), (1045, 17356), (2090, 8678), (4180, 4339)]