20782086

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{379}}^1$

素因数の和:453

約数の個数: 64

約数和(自身を含む): 48518400

約数和(自身を除く): 27736314

約数列:

[1, 2, 3, 6, 13, 19, 26, 37, 38, 39, 57, 74, 78, 111, 114, 222, 247, 379, 481, 494, 703, 741, 758, 962, 1137, 1406, 1443, 1482, 2109, 2274, 2886, 4218, 4927, 7201, 9139, 9854, 14023, 14402, 14781, 18278, 21603, 27417, 28046, 29562, 42069, 43206, 54834, 84138, 93613, 182299, 187226, 266437, 280839, 364598, 532874, 546897, 561678, 799311, 1093794, 1598622, 3463681, 6927362, 10391043, 20782086]

約数ペア:

[(1, 20782086), (2, 10391043), (3, 6927362), (6, 3463681), (13, 1598622), (19, 1093794), (26, 799311), (37, 561678), (38, 546897), (39, 532874), (57, 364598), (74, 280839), (78, 266437), (111, 187226), (114, 182299), (222, 93613), (247, 84138), (379, 54834), (481, 43206), (494, 42069), (703, 29562), (741, 28046), (758, 27417), (962, 21603), (1137, 18278), (1406, 14781), (1443, 14402), (1482, 14023), (2109, 9854), (2274, 9139), (2886, 7201), (4218, 4927)]