12654680

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1231}}^1$

素因数の和:1499

約数の個数: 32

約数和(自身を含む): 28607040

約数和(自身を除く): 15952360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1231, 1285, 2056, 2462, 2570, 4924, 5140, 6155, 9848, 10280, 12310, 24620, 49240, 316367, 632734, 1265468, 1581835, 2530936, 3163670, 6327340, 12654680]

約数ペア:

[(1, 12654680), (2, 6327340), (4, 3163670), (5, 2530936), (8, 1581835), (10, 1265468), (20, 632734), (40, 316367), (257, 49240), (514, 24620), (1028, 12310), (1231, 10280), (1285, 9848), (2056, 6155), (2462, 5140), (2570, 4924)]