85447280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 206236800

約数和(自身を除く): 120789520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 109, 164, 205, 218, 239, 328, 410, 436, 478, 545, 656, 820, 872, 956, 1090, 1195, 1640, 1744, 1912, 2180, 2390, 3280, 3824, 4360, 4469, 4780, 8720, 8938, 9560, 9799, 17876, 19120, 19598, 22345, 26051, 35752, 39196, 44690, 48995, 52102, 71504, 78392, 89380, 97990, 104204, 130255, 156784, 178760, 195980, 208408, 260510, 357520, 391960, 416816, 521020, 783920, 1042040, 1068091, 2084080, 2136182, 4272364, 5340455, 8544728, 10680910, 17089456, 21361820, 42723640, 85447280]

約数ペア:

[(1, 85447280), (2, 42723640), (4, 21361820), (5, 17089456), (8, 10680910), (10, 8544728), (16, 5340455), (20, 4272364), (40, 2136182), (41, 2084080), (80, 1068091), (82, 1042040), (109, 783920), (164, 521020), (205, 416816), (218, 391960), (239, 357520), (328, 260510), (410, 208408), (436, 195980), (478, 178760), (545, 156784), (656, 130255), (820, 104204), (872, 97990), (956, 89380), (1090, 78392), (1195, 71504), (1640, 52102), (1744, 48995), (1912, 44690), (2180, 39196), (2390, 35752), (3280, 26051), (3824, 22345), (4360, 19598), (4469, 19120), (4780, 17876), (8720, 9799), (8938, 9560)]