164031280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{587}}^1$

素因数の和:1106

約数の個数: 80

約数和(自身を含む): 437472000

約数和(自身を除く): 273440720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 499, 560, 587, 998, 1174, 1996, 2348, 2495, 2935, 3493, 3992, 4109, 4696, 4990, 5870, 6986, 7984, 8218, 9392, 9980, 11740, 13972, 16436, 17465, 19960, 20545, 23480, 27944, 32872, 34930, 39920, 41090, 46960, 55888, 65744, 69860, 82180, 139720, 164360, 279440, 292913, 328720, 585826, 1171652, 1464565, 2050391, 2343304, 2929130, 4100782, 4686608, 5858260, 8201564, 10251955, 11716520, 16403128, 20503910, 23433040, 32806256, 41007820, 82015640, 164031280]

約数ペア:

[(1, 164031280), (2, 82015640), (4, 41007820), (5, 32806256), (7, 23433040), (8, 20503910), (10, 16403128), (14, 11716520), (16, 10251955), (20, 8201564), (28, 5858260), (35, 4686608), (40, 4100782), (56, 2929130), (70, 2343304), (80, 2050391), (112, 1464565), (140, 1171652), (280, 585826), (499, 328720), (560, 292913), (587, 279440), (998, 164360), (1174, 139720), (1996, 82180), (2348, 69860), (2495, 65744), (2935, 55888), (3493, 46960), (3992, 41090), (4109, 39920), (4696, 34930), (4990, 32872), (5870, 27944), (6986, 23480), (7984, 20545), (8218, 19960), (9392, 17465), (9980, 16436), (11740, 13972)]