23140280

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2251}}^1$

素因数の和:2519

約数の個数: 32

約数和(自身を含む): 52291440

約数和(自身を除く): 29151160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2251, 2570, 4502, 5140, 9004, 10280, 11255, 18008, 22510, 45020, 90040, 578507, 1157014, 2314028, 2892535, 4628056, 5785070, 11570140, 23140280]

約数ペア:

[(1, 23140280), (2, 11570140), (4, 5785070), (5, 4628056), (8, 2892535), (10, 2314028), (20, 1157014), (40, 578507), (257, 90040), (514, 45020), (1028, 22510), (1285, 18008), (2056, 11255), (2251, 10280), (2570, 9004), (4502, 5140)]