27920240

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{5209}}^1$

素因数の和:5289

約数の個数: 40

約数和(自身を含む): 65896080

約数和(自身を除く): 37975840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5209, 5360, 10418, 20836, 26045, 41672, 52090, 83344, 104180, 208360, 349003, 416720, 698006, 1396012, 1745015, 2792024, 3490030, 5584048, 6980060, 13960120, 27920240]

約数ペア:

[(1, 27920240), (2, 13960120), (4, 6980060), (5, 5584048), (8, 3490030), (10, 2792024), (16, 1745015), (20, 1396012), (40, 698006), (67, 416720), (80, 349003), (134, 208360), (268, 104180), (335, 83344), (536, 52090), (670, 41672), (1072, 26045), (1340, 20836), (2680, 10418), (5209, 5360)]