207845840

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{32887}}^1$

素因数の和:32979

約数の個数: 40

約数和(自身を含む): 489373440

約数和(自身を除く): 281527600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 32887, 65774, 131548, 164435, 263096, 328870, 526192, 657740, 1315480, 2598073, 2630960, 5196146, 10392292, 12990365, 20784584, 25980730, 41569168, 51961460, 103922920, 207845840]

約数ペア:

[(1, 207845840), (2, 103922920), (4, 51961460), (5, 41569168), (8, 25980730), (10, 20784584), (16, 12990365), (20, 10392292), (40, 5196146), (79, 2630960), (80, 2598073), (158, 1315480), (316, 657740), (395, 526192), (632, 328870), (790, 263096), (1264, 164435), (1580, 131548), (3160, 65774), (6320, 32887)]