20940180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{5209}}^1$

素因数の和:5288

約数の個数: 48

約数和(自身を含む): 59519040

約数和(自身を除く): 38578860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 67, 134, 201, 268, 335, 402, 670, 804, 1005, 1340, 2010, 4020, 5209, 10418, 15627, 20836, 26045, 31254, 52090, 62508, 78135, 104180, 156270, 312540, 349003, 698006, 1047009, 1396012, 1745015, 2094018, 3490030, 4188036, 5235045, 6980060, 10470090, 20940180]

約数ペア:

[(1, 20940180), (2, 10470090), (3, 6980060), (4, 5235045), (5, 4188036), (6, 3490030), (10, 2094018), (12, 1745015), (15, 1396012), (20, 1047009), (30, 698006), (60, 349003), (67, 312540), (134, 156270), (201, 104180), (268, 78135), (335, 62508), (402, 52090), (670, 31254), (804, 26045), (1005, 20836), (1340, 15627), (2010, 10418), (4020, 5209)]