31788880

素因数分解:

$2^4\times 5^1\times {\mathrm{397361}}^1$

素因数の和:397374

約数の個数: 20

約数和(自身を含む): 73909332

約数和(自身を除く): 42120452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397361, 794722, 1589444, 1986805, 3178888, 3973610, 6357776, 7947220, 15894440, 31788880]

約数ペア:

[(1, 31788880), (2, 15894440), (4, 7947220), (5, 6357776), (8, 3973610), (10, 3178888), (16, 1986805), (20, 1589444), (40, 794722), (80, 397361)]