158944400

素因数分解:

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

素因数の和:397379

約数の個数: 30

約数和(自身を含む): 381864882

約数和(自身を除く): 222920482

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 397361, 794722, 1589444, 1986805, 3178888, 3973610, 6357776, 7947220, 9934025, 15894440, 19868050, 31788880, 39736100, 79472200, 158944400]

約数ペア:

[(1, 158944400), (2, 79472200), (4, 39736100), (5, 31788880), (8, 19868050), (10, 15894440), (16, 9934025), (20, 7947220), (25, 6357776), (40, 3973610), (50, 3178888), (80, 1986805), (100, 1589444), (200, 794722), (400, 397361)]