19287640

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3469}}^1$

素因数の和:3619

約数の個数: 32

約数和(自身を含む): 43722000

約数和(自身を除く): 24434360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3469, 5560, 6938, 13876, 17345, 27752, 34690, 69380, 138760, 482191, 964382, 1928764, 2410955, 3857528, 4821910, 9643820, 19287640]

約数ペア:

[(1, 19287640), (2, 9643820), (4, 4821910), (5, 3857528), (8, 2410955), (10, 1928764), (20, 964382), (40, 482191), (139, 138760), (278, 69380), (556, 34690), (695, 27752), (1112, 17345), (1390, 13876), (2780, 6938), (3469, 5560)]