20154990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{59}}^2\times {\mathrm{193}}^1$

素因数の和:321

約数の個数: 48

約数和(自身を含む): 49460688

約数和(自身を除く): 29305698

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 59, 118, 177, 193, 295, 354, 386, 579, 590, 885, 965, 1158, 1770, 1930, 2895, 3481, 5790, 6962, 10443, 11387, 17405, 20886, 22774, 34161, 34810, 52215, 56935, 68322, 104430, 113870, 170805, 341610, 671833, 1343666, 2015499, 3359165, 4030998, 6718330, 10077495, 20154990]

約数ペア:

[(1, 20154990), (2, 10077495), (3, 6718330), (5, 4030998), (6, 3359165), (10, 2015499), (15, 1343666), (30, 671833), (59, 341610), (118, 170805), (177, 113870), (193, 104430), (295, 68322), (354, 56935), (386, 52215), (579, 34810), (590, 34161), (885, 22774), (965, 20886), (1158, 17405), (1770, 11387), (1930, 10443), (2895, 6962), (3481, 5790)]