28160660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6737}}^1$

素因数の和:6776

約数の個数: 48

約数和(自身を含む): 67919040

約数和(自身を除く): 39758380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 6737, 13474, 26948, 33685, 67370, 74107, 128003, 134740, 148214, 256006, 296428, 370535, 512012, 640015, 741070, 1280030, 1408033, 1482140, 2560060, 2816066, 5632132, 7040165, 14080330, 28160660]

約数ペア:

[(1, 28160660), (2, 14080330), (4, 7040165), (5, 5632132), (10, 2816066), (11, 2560060), (19, 1482140), (20, 1408033), (22, 1280030), (38, 741070), (44, 640015), (55, 512012), (76, 370535), (95, 296428), (110, 256006), (190, 148214), (209, 134740), (220, 128003), (380, 74107), (418, 67370), (836, 33685), (1045, 26948), (2090, 13474), (4180, 6737)]