20178759544

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1\times {\mathrm{6247}}^1$

素因数の和:6620

約数の個数: 64

約数和(自身を含む): 40487040000

約数和(自身を除く): 20308280456

約数列:

[1, 2, 4, 8, 19, 38, 76, 79, 152, 158, 269, 316, 538, 632, 1076, 1501, 2152, 3002, 5111, 6004, 6247, 10222, 12008, 12494, 20444, 21251, 24988, 40888, 42502, 49976, 85004, 118693, 170008, 237386, 403769, 474772, 493513, 807538, 949544, 987026, 1615076, 1680443, 1974052, 3230152, 3360886, 3948104, 6721772, 9376747, 13443544, 18753494, 31928417, 37506988, 63856834, 75013976, 127713668, 132754997, 255427336, 265509994, 531019988, 1062039976, 2522344943, 5044689886, 10089379772, 20178759544]

約数ペア:

[(1, 20178759544), (2, 10089379772), (4, 5044689886), (8, 2522344943), (19, 1062039976), (38, 531019988), (76, 265509994), (79, 255427336), (152, 132754997), (158, 127713668), (269, 75013976), (316, 63856834), (538, 37506988), (632, 31928417), (1076, 18753494), (1501, 13443544), (2152, 9376747), (3002, 6721772), (5111, 3948104), (6004, 3360886), (6247, 3230152), (10222, 1974052), (12008, 1680443), (12494, 1615076), (20444, 987026), (21251, 949544), (24988, 807538), (40888, 493513), (42502, 474772), (49976, 403769), (85004, 237386), (118693, 170008)]