28586020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:612

約数の個数: 48

約数和(自身を含む): 62487936

約数和(自身を除く): 33901916

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 142, 164, 205, 284, 355, 410, 491, 710, 820, 982, 1420, 1964, 2455, 2911, 4910, 5822, 9820, 11644, 14555, 20131, 29110, 34861, 40262, 58220, 69722, 80524, 100655, 139444, 174305, 201310, 348610, 402620, 697220, 1429301, 2858602, 5717204, 7146505, 14293010, 28586020]

約数ペア:

[(1, 28586020), (2, 14293010), (4, 7146505), (5, 5717204), (10, 2858602), (20, 1429301), (41, 697220), (71, 402620), (82, 348610), (142, 201310), (164, 174305), (205, 139444), (284, 100655), (355, 80524), (410, 69722), (491, 58220), (710, 40262), (820, 34861), (982, 29110), (1420, 20131), (1964, 14555), (2455, 11644), (2911, 9820), (4910, 5822)]