80367760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{337}}^1$

素因数の和:632

約数の個数: 80

約数和(自身を含む): 205201152

約数和(自身を除く): 124833392

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 271, 337, 440, 542, 674, 880, 1084, 1348, 1355, 1685, 2168, 2696, 2710, 2981, 3370, 3707, 4336, 5392, 5420, 5962, 6740, 7414, 10840, 11924, 13480, 14828, 14905, 18535, 21680, 23848, 26960, 29656, 29810, 37070, 47696, 59312, 59620, 74140, 91327, 119240, 148280, 182654, 238480, 296560, 365308, 456635, 730616, 913270, 1004597, 1461232, 1826540, 2009194, 3653080, 4018388, 5022985, 7306160, 8036776, 10045970, 16073552, 20091940, 40183880, 80367760]

約数ペア:

[(1, 80367760), (2, 40183880), (4, 20091940), (5, 16073552), (8, 10045970), (10, 8036776), (11, 7306160), (16, 5022985), (20, 4018388), (22, 3653080), (40, 2009194), (44, 1826540), (55, 1461232), (80, 1004597), (88, 913270), (110, 730616), (176, 456635), (220, 365308), (271, 296560), (337, 238480), (440, 182654), (542, 148280), (674, 119240), (880, 91327), (1084, 74140), (1348, 59620), (1355, 59312), (1685, 47696), (2168, 37070), (2696, 29810), (2710, 29656), (2981, 26960), (3370, 23848), (3707, 21680), (4336, 18535), (5392, 14905), (5420, 14828), (5962, 13480), (6740, 11924), (7414, 10840)]