28695080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17497}}^1$

素因数の和:17549

約数の個数: 32

約数和(自身を含む): 66142440

約数和(自身を除く): 37447360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 17497, 34994, 69988, 87485, 139976, 174970, 349940, 699880, 717377, 1434754, 2869508, 3586885, 5739016, 7173770, 14347540, 28695080]

約数ペア:

[(1, 28695080), (2, 14347540), (4, 7173770), (5, 5739016), (8, 3586885), (10, 2869508), (20, 1434754), (40, 717377), (41, 699880), (82, 349940), (164, 174970), (205, 139976), (328, 87485), (410, 69988), (820, 34994), (1640, 17497)]