20793215720

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{431}}^1\times {\mathrm{8677}}^1$

素因数の和:9258

約数の個数: 64

約数和(自身を含む): 47236089600

約数和(自身を除く): 26442873880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 431, 556, 695, 862, 1112, 1390, 1724, 2155, 2780, 3448, 4310, 5560, 8620, 8677, 17240, 17354, 34708, 43385, 59909, 69416, 86770, 119818, 173540, 239636, 299545, 347080, 479272, 599090, 1198180, 1206103, 2396360, 2412206, 3739787, 4824412, 6030515, 7479574, 9648824, 12061030, 14959148, 18698935, 24122060, 29918296, 37397870, 48244120, 74795740, 149591480, 519830393, 1039660786, 2079321572, 2599151965, 4158643144, 5198303930, 10396607860, 20793215720]

約数ペア:

[(1, 20793215720), (2, 10396607860), (4, 5198303930), (5, 4158643144), (8, 2599151965), (10, 2079321572), (20, 1039660786), (40, 519830393), (139, 149591480), (278, 74795740), (431, 48244120), (556, 37397870), (695, 29918296), (862, 24122060), (1112, 18698935), (1390, 14959148), (1724, 12061030), (2155, 9648824), (2780, 7479574), (3448, 6030515), (4310, 4824412), (5560, 3739787), (8620, 2412206), (8677, 2396360), (17240, 1206103), (17354, 1198180), (34708, 599090), (43385, 479272), (59909, 347080), (69416, 299545), (86770, 239636), (119818, 173540)]