51178860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1811}}^1$

素因数の和:1983

約数の個数: 72

約数和(自身を含む): 156317616

約数和(自身を除く): 105138756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 785, 942, 1413, 1570, 1811, 1884, 2355, 2826, 3140, 3622, 4710, 5433, 5652, 7065, 7244, 9055, 9420, 10866, 14130, 16299, 18110, 21732, 27165, 28260, 32598, 36220, 54330, 65196, 81495, 108660, 162990, 284327, 325980, 568654, 852981, 1137308, 1421635, 1705962, 2558943, 2843270, 3411924, 4264905, 5117886, 5686540, 8529810, 10235772, 12794715, 17059620, 25589430, 51178860]

約数ペア:

[(1, 51178860), (2, 25589430), (3, 17059620), (4, 12794715), (5, 10235772), (6, 8529810), (9, 5686540), (10, 5117886), (12, 4264905), (15, 3411924), (18, 2843270), (20, 2558943), (30, 1705962), (36, 1421635), (45, 1137308), (60, 852981), (90, 568654), (157, 325980), (180, 284327), (314, 162990), (471, 108660), (628, 81495), (785, 65196), (942, 54330), (1413, 36220), (1570, 32598), (1811, 28260), (1884, 27165), (2355, 21732), (2826, 18110), (3140, 16299), (3622, 14130), (4710, 10866), (5433, 9420), (5652, 9055), (7065, 7244)]