78967600

素因数分解:

$2^4\times 5^2\times {\mathrm{197419}}^1$

素因数の和:197437

約数の個数: 30

約数和(自身を含む): 189720620

約数和(自身を除く): 110753020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 197419, 394838, 789676, 987095, 1579352, 1974190, 3158704, 3948380, 4935475, 7896760, 9870950, 15793520, 19741900, 39483800, 78967600]

約数ペア:

[(1, 78967600), (2, 39483800), (4, 19741900), (5, 15793520), (8, 9870950), (10, 7896760), (16, 4935475), (20, 3948380), (25, 3158704), (40, 1974190), (50, 1579352), (80, 987095), (100, 789676), (200, 394838), (400, 197419)]