77847280

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{2837}}^1$

素因数の和:2871

約数の個数: 80

約数和(自身を含む): 211147200

約数和(自身を除く): 133299920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 2837, 3430, 3920, 5488, 5674, 6860, 11348, 13720, 14185, 19859, 22696, 27440, 28370, 39718, 45392, 56740, 79436, 99295, 113480, 139013, 158872, 198590, 226960, 278026, 317744, 397180, 556052, 695065, 794360, 973091, 1112104, 1390130, 1588720, 1946182, 2224208, 2780260, 3892364, 4865455, 5560520, 7784728, 9730910, 11121040, 15569456, 19461820, 38923640, 77847280]

約数ペア:

[(1, 77847280), (2, 38923640), (4, 19461820), (5, 15569456), (7, 11121040), (8, 9730910), (10, 7784728), (14, 5560520), (16, 4865455), (20, 3892364), (28, 2780260), (35, 2224208), (40, 1946182), (49, 1588720), (56, 1390130), (70, 1112104), (80, 973091), (98, 794360), (112, 695065), (140, 556052), (196, 397180), (245, 317744), (280, 278026), (343, 226960), (392, 198590), (490, 158872), (560, 139013), (686, 113480), (784, 99295), (980, 79436), (1372, 56740), (1715, 45392), (1960, 39718), (2744, 28370), (2837, 27440), (3430, 22696), (3920, 19859), (5488, 14185), (5674, 13720), (6860, 11348)]