20493810

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{25301}}^1$

素因数の和:25320

約数の個数: 40

約数和(自身を含む): 55107756

約数和(自身を除く): 34613946

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 25301, 50602, 75903, 126505, 151806, 227709, 253010, 379515, 455418, 683127, 759030, 1138545, 1366254, 2049381, 2277090, 3415635, 4098762, 6831270, 10246905, 20493810]

約数ペア:

[(1, 20493810), (2, 10246905), (3, 6831270), (5, 4098762), (6, 3415635), (9, 2277090), (10, 2049381), (15, 1366254), (18, 1138545), (27, 759030), (30, 683127), (45, 455418), (54, 379515), (81, 253010), (90, 227709), (135, 151806), (162, 126505), (270, 75903), (405, 50602), (810, 25301)]