129021920

素因数分解:

$2^5\times 5^1\times {\mathrm{103}}^1\times {\mathrm{7829}}^1$

素因数の和:7947

約数の個数: 48

約数和(自身を含む): 307812960

約数和(自身を除く): 178791040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 103, 160, 206, 412, 515, 824, 1030, 1648, 2060, 3296, 4120, 7829, 8240, 15658, 16480, 31316, 39145, 62632, 78290, 125264, 156580, 250528, 313160, 626320, 806387, 1252640, 1612774, 3225548, 4031935, 6451096, 8063870, 12902192, 16127740, 25804384, 32255480, 64510960, 129021920]

約数ペア:

[(1, 129021920), (2, 64510960), (4, 32255480), (5, 25804384), (8, 16127740), (10, 12902192), (16, 8063870), (20, 6451096), (32, 4031935), (40, 3225548), (80, 1612774), (103, 1252640), (160, 806387), (206, 626320), (412, 313160), (515, 250528), (824, 156580), (1030, 125264), (1648, 78290), (2060, 62632), (3296, 39145), (4120, 31316), (7829, 16480), (8240, 15658)]