51146511880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{324781}}^1$

素因数の和:324950

約数の個数: 64

約数和(自身を含む): 119727636480

約数和(自身を除く): 68581124600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 127, 155, 248, 254, 310, 508, 620, 635, 1016, 1240, 1270, 2540, 3937, 5080, 7874, 15748, 19685, 31496, 39370, 78740, 157480, 324781, 649562, 1299124, 1623905, 2598248, 3247810, 6495620, 10068211, 12991240, 20136422, 40272844, 41247187, 50341055, 80545688, 82494374, 100682110, 164988748, 201364220, 206235935, 329977496, 402728440, 412471870, 824943740, 1278662797, 1649887480, 2557325594, 5114651188, 6393313985, 10229302376, 12786627970, 25573255940, 51146511880]

約数ペア:

[(1, 51146511880), (2, 25573255940), (4, 12786627970), (5, 10229302376), (8, 6393313985), (10, 5114651188), (20, 2557325594), (31, 1649887480), (40, 1278662797), (62, 824943740), (124, 412471870), (127, 402728440), (155, 329977496), (248, 206235935), (254, 201364220), (310, 164988748), (508, 100682110), (620, 82494374), (635, 80545688), (1016, 50341055), (1240, 41247187), (1270, 40272844), (2540, 20136422), (3937, 12991240), (5080, 10068211), (7874, 6495620), (15748, 3247810), (19685, 2598248), (31496, 1623905), (39370, 1299124), (78740, 649562), (157480, 324781)]