207974680

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{20231}}^1$

素因数の和:20499

約数の個数: 32

約数和(自身を含む): 469787040

約数和(自身を除く): 261812360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 20231, 40462, 80924, 101155, 161848, 202310, 404620, 809240, 5199367, 10398734, 20797468, 25996835, 41594936, 51993670, 103987340, 207974680]

約数ペア:

[(1, 207974680), (2, 103987340), (4, 51993670), (5, 41594936), (8, 25996835), (10, 20797468), (20, 10398734), (40, 5199367), (257, 809240), (514, 404620), (1028, 202310), (1285, 161848), (2056, 101155), (2570, 80924), (5140, 40462), (10280, 20231)]