2577973720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{18451}}^1$

素因数の和:18968

約数の個数: 64

約数和(自身を含む): 6642720000

約数和(自身を除く): 4064746280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 499, 998, 1996, 2495, 3493, 3992, 4990, 6986, 9980, 13972, 17465, 18451, 19960, 27944, 34930, 36902, 69860, 73804, 92255, 129157, 139720, 147608, 184510, 258314, 369020, 516628, 645785, 738040, 1033256, 1291570, 2583140, 5166280, 9207049, 18414098, 36828196, 46035245, 64449343, 73656392, 92070490, 128898686, 184140980, 257797372, 322246715, 368281960, 515594744, 644493430, 1288986860, 2577973720]

約数ペア:

[(1, 2577973720), (2, 1288986860), (4, 644493430), (5, 515594744), (7, 368281960), (8, 322246715), (10, 257797372), (14, 184140980), (20, 128898686), (28, 92070490), (35, 73656392), (40, 64449343), (56, 46035245), (70, 36828196), (140, 18414098), (280, 9207049), (499, 5166280), (998, 2583140), (1996, 1291570), (2495, 1033256), (3493, 738040), (3992, 645785), (4990, 516628), (6986, 369020), (9980, 258314), (13972, 184510), (17465, 147608), (18451, 139720), (19960, 129157), (27944, 92255), (34930, 73804), (36902, 69860)]