11915080

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2143}}^1$

素因数の和:2293

約数の個数: 32

約数和(自身を含む): 27014400

約数和(自身を除く): 15099320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2143, 2780, 4286, 5560, 8572, 10715, 17144, 21430, 42860, 85720, 297877, 595754, 1191508, 1489385, 2383016, 2978770, 5957540, 11915080]

約数ペア:

[(1, 11915080), (2, 5957540), (4, 2978770), (5, 2383016), (8, 1489385), (10, 1191508), (20, 595754), (40, 297877), (139, 85720), (278, 42860), (556, 21430), (695, 17144), (1112, 10715), (1390, 8572), (2143, 5560), (2780, 4286)]