20148661725

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{449}}^1$

素因数の和:759

約数の個数: 96

約数和(自身を含む): 34842412800

約数和(自身を除く): 14693751075

約数列:

[1, 3, 5, 15, 25, 37, 75, 103, 111, 157, 185, 309, 449, 471, 515, 555, 785, 925, 1347, 1545, 2245, 2355, 2575, 2775, 3811, 3925, 5809, 6735, 7725, 11225, 11433, 11775, 16171, 16613, 17427, 19055, 29045, 33675, 46247, 48513, 49839, 57165, 70493, 80855, 83065, 87135, 95275, 138741, 145225, 211479, 231235, 242565, 249195, 285825, 352465, 404275, 415325, 435675, 598327, 693705, 1057395, 1156175, 1212825, 1245975, 1711139, 1762325, 1794981, 2608241, 2991635, 3468525, 5133417, 5286975, 7260779, 7824723, 8555695, 8974905, 13041205, 14958175, 21782337, 25667085, 36303895, 39123615, 42778475, 44874525, 65206025, 108911685, 128335425, 181519475, 195618075, 268648823, 544558425, 805946469, 1343244115, 4029732345, 6716220575, 20148661725]

約数ペア:

[(1, 20148661725), (3, 6716220575), (5, 4029732345), (15, 1343244115), (25, 805946469), (37, 544558425), (75, 268648823), (103, 195618075), (111, 181519475), (157, 128335425), (185, 108911685), (309, 65206025), (449, 44874525), (471, 42778475), (515, 39123615), (555, 36303895), (785, 25667085), (925, 21782337), (1347, 14958175), (1545, 13041205), (2245, 8974905), (2355, 8555695), (2575, 7824723), (2775, 7260779), (3811, 5286975), (3925, 5133417), (5809, 3468525), (6735, 2991635), (7725, 2608241), (11225, 1794981), (11433, 1762325), (11775, 1711139), (16171, 1245975), (16613, 1212825), (17427, 1156175), (19055, 1057395), (29045, 693705), (33675, 598327), (46247, 435675), (48513, 415325), (49839, 404275), (57165, 352465), (70493, 285825), (80855, 249195), (83065, 242565), (87135, 231235), (95275, 211479), (138741, 145225)]