20660800

素因数分解:

$2^6\times 5^2\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:408

約数の個数: 84

約数和(自身を含む): 52362100

約数和(自身を除く): 31701300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 37, 40, 50, 64, 74, 80, 100, 148, 160, 185, 200, 296, 320, 349, 370, 400, 592, 698, 740, 800, 925, 1184, 1396, 1480, 1600, 1745, 1850, 2368, 2792, 2960, 3490, 3700, 5584, 5920, 6980, 7400, 8725, 11168, 11840, 12913, 13960, 14800, 17450, 22336, 25826, 27920, 29600, 34900, 51652, 55840, 59200, 64565, 69800, 103304, 111680, 129130, 139600, 206608, 258260, 279200, 322825, 413216, 516520, 558400, 645650, 826432, 1033040, 1291300, 2066080, 2582600, 4132160, 5165200, 10330400, 20660800]

約数ペア:

[(1, 20660800), (2, 10330400), (4, 5165200), (5, 4132160), (8, 2582600), (10, 2066080), (16, 1291300), (20, 1033040), (25, 826432), (32, 645650), (37, 558400), (40, 516520), (50, 413216), (64, 322825), (74, 279200), (80, 258260), (100, 206608), (148, 139600), (160, 129130), (185, 111680), (200, 103304), (296, 69800), (320, 64565), (349, 59200), (370, 55840), (400, 51652), (592, 34900), (698, 29600), (740, 27920), (800, 25826), (925, 22336), (1184, 17450), (1396, 14800), (1480, 13960), (1600, 12913), (1745, 11840), (1850, 11168), (2368, 8725), (2792, 7400), (2960, 6980), (3490, 5920), (3700, 5584)]