13808219240

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{536867}}^1$

素因数の和:537521

約数の個数: 32

約数和(自身を含む): 31116869280

約数和(自身を除く): 17308650040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 5144, 6430, 12860, 25720, 536867, 1073734, 2147468, 2684335, 4294936, 5368670, 10737340, 21474680, 345205481, 690410962, 1380821924, 1726027405, 2761643848, 3452054810, 6904109620, 13808219240]

約数ペア:

[(1, 13808219240), (2, 6904109620), (4, 3452054810), (5, 2761643848), (8, 1726027405), (10, 1380821924), (20, 690410962), (40, 345205481), (643, 21474680), (1286, 10737340), (2572, 5368670), (3215, 4294936), (5144, 2684335), (6430, 2147468), (12860, 1073734), (25720, 536867)]