91290520

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{5867}}^1$

素因数の和:6267

約数の個数: 32

約数和(自身を含む): 205966800

約数和(自身を除く): 114676280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 5867, 7780, 11734, 15560, 23468, 29335, 46936, 58670, 117340, 234680, 2282263, 4564526, 9129052, 11411315, 18258104, 22822630, 45645260, 91290520]

約数ペア:

[(1, 91290520), (2, 45645260), (4, 22822630), (5, 18258104), (8, 11411315), (10, 9129052), (20, 4564526), (40, 2282263), (389, 234680), (778, 117340), (1556, 58670), (1945, 46936), (3112, 29335), (3890, 23468), (5867, 15560), (7780, 11734)]