20122499080

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{971}}^1\times {\mathrm{7297}}^1$

素因数の和:8350

約数の個数: 64

約数和(自身を含む): 45966890880

約数和(自身を除く): 25844391800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 971, 1420, 1942, 2840, 3884, 4855, 7297, 7768, 9710, 14594, 19420, 29188, 36485, 38840, 58376, 68941, 72970, 137882, 145940, 275764, 291880, 344705, 518087, 551528, 689410, 1036174, 1378820, 2072348, 2590435, 2757640, 4144696, 5180870, 7085387, 10361740, 14170774, 20723480, 28341548, 35426935, 56683096, 70853870, 141707740, 283415480, 503062477, 1006124954, 2012249908, 2515312385, 4024499816, 5030624770, 10061249540, 20122499080]

約数ペア:

[(1, 20122499080), (2, 10061249540), (4, 5030624770), (5, 4024499816), (8, 2515312385), (10, 2012249908), (20, 1006124954), (40, 503062477), (71, 283415480), (142, 141707740), (284, 70853870), (355, 56683096), (568, 35426935), (710, 28341548), (971, 20723480), (1420, 14170774), (1942, 10361740), (2840, 7085387), (3884, 5180870), (4855, 4144696), (7297, 2757640), (7768, 2590435), (9710, 2072348), (14594, 1378820), (19420, 1036174), (29188, 689410), (36485, 551528), (38840, 518087), (58376, 344705), (68941, 291880), (72970, 275764), (137882, 145940)]