17966419306540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{647}}^1\times {\mathrm{825961}}^1$

素因数の和:826699

約数の個数: 72

約数和(自身を含む): 38731974827616

約数和(自身を除く): 20765555521076

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 647, 820, 1294, 1681, 2588, 3235, 3362, 6470, 6724, 8405, 12940, 16810, 26527, 33620, 53054, 106108, 132635, 265270, 530540, 825961, 1087607, 1651922, 2175214, 3303844, 4129805, 4350428, 5438035, 8259610, 10876070, 16519220, 21752140, 33864401, 67728802, 135457604, 169322005, 338644010, 534396767, 677288020, 1068793534, 1388440441, 2137587068, 2671983835, 2776880882, 5343967670, 5553761764, 6942202205, 10687935340, 13884404410, 21910267447, 27768808820, 43820534894, 87641069788, 109551337235, 219102674470, 438205348940, 898320965327, 1796641930654, 3593283861308, 4491604826635, 8983209653270, 17966419306540]

約数ペア:

[(1, 17966419306540), (2, 8983209653270), (4, 4491604826635), (5, 3593283861308), (10, 1796641930654), (20, 898320965327), (41, 438205348940), (82, 219102674470), (164, 109551337235), (205, 87641069788), (410, 43820534894), (647, 27768808820), (820, 21910267447), (1294, 13884404410), (1681, 10687935340), (2588, 6942202205), (3235, 5553761764), (3362, 5343967670), (6470, 2776880882), (6724, 2671983835), (8405, 2137587068), (12940, 1388440441), (16810, 1068793534), (26527, 677288020), (33620, 534396767), (53054, 338644010), (106108, 169322005), (132635, 135457604), (265270, 67728802), (530540, 33864401), (825961, 21752140), (1087607, 16519220), (1651922, 10876070), (2175214, 8259610), (3303844, 5438035), (4129805, 4350428)]