20123171285

素因数分解:

$5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{151}}^1\times {\mathrm{5281}}^1$

素因数の和:5554

約数の個数: 48

約数和(自身を含む): 28556266752

約数和(自身を除く): 8433095467

約数列:

[1, 5, 7, 35, 49, 103, 151, 245, 515, 721, 755, 1057, 3605, 5047, 5281, 5285, 7399, 15553, 25235, 26405, 36967, 36995, 77765, 108871, 184835, 258769, 543943, 544355, 762097, 797431, 1293845, 2719715, 3807601, 3810485, 3987155, 5582017, 19038005, 26653207, 27910085, 39074119, 82135393, 133266035, 195370595, 410676965, 574947751, 2874738755, 4024634257, 20123171285]

約数ペア:

[(1, 20123171285), (5, 4024634257), (7, 2874738755), (35, 574947751), (49, 410676965), (103, 195370595), (151, 133266035), (245, 82135393), (515, 39074119), (721, 27910085), (755, 26653207), (1057, 19038005), (3605, 5582017), (5047, 3987155), (5281, 3810485), (5285, 3807601), (7399, 2719715), (15553, 1293845), (25235, 797431), (26405, 762097), (36967, 544355), (36995, 543943), (77765, 258769), (108871, 184835)]