18728530

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:394

約数の個数: 32

約数和(自身を含む): 34583040

約数和(自身を除く): 15854510

約数列:

[1, 2, 5, 10, 79, 151, 157, 158, 302, 314, 395, 755, 785, 790, 1510, 1570, 11929, 12403, 23707, 23858, 24806, 47414, 59645, 62015, 118535, 119290, 124030, 237070, 1872853, 3745706, 9364265, 18728530]

約数ペア:

[(1, 18728530), (2, 9364265), (5, 3745706), (10, 1872853), (79, 237070), (151, 124030), (157, 119290), (158, 118535), (302, 62015), (314, 59645), (395, 47414), (755, 24806), (785, 23858), (790, 23707), (1510, 12403), (1570, 11929)]