20115721810

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1\times {\mathrm{1061}}^1$

素因数の和:1483

約数の個数: 64

約数和(自身を含む): 37216558080

約数和(自身を除く): 17100836270

約数列:

[1, 2, 5, 10, 79, 103, 158, 206, 233, 395, 466, 515, 790, 1030, 1061, 1165, 2122, 2330, 5305, 8137, 10610, 16274, 18407, 23999, 36814, 40685, 47998, 81370, 83819, 92035, 109283, 119995, 167638, 184070, 218566, 239990, 247213, 419095, 494426, 546415, 838190, 1092830, 1236065, 1895921, 2472130, 3791842, 8633357, 9479605, 17266714, 18959210, 19529827, 25462939, 39059654, 43166785, 50925878, 86333570, 97649135, 127314695, 195298270, 254629390, 2011572181, 4023144362, 10057860905, 20115721810]

約数ペア:

[(1, 20115721810), (2, 10057860905), (5, 4023144362), (10, 2011572181), (79, 254629390), (103, 195298270), (158, 127314695), (206, 97649135), (233, 86333570), (395, 50925878), (466, 43166785), (515, 39059654), (790, 25462939), (1030, 19529827), (1061, 18959210), (1165, 17266714), (2122, 9479605), (2330, 8633357), (5305, 3791842), (8137, 2472130), (10610, 1895921), (16274, 1236065), (18407, 1092830), (23999, 838190), (36814, 546415), (40685, 494426), (47998, 419095), (81370, 247213), (83819, 239990), (92035, 218566), (109283, 184070), (119995, 167638)]