79302800

素因数分解:

$2^4\times 5^2\times {\mathrm{198257}}^1$

素因数の和:198275

約数の個数: 30

約数和(自身を含む): 190525938

約数和(自身を除く): 111223138

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 198257, 396514, 793028, 991285, 1586056, 1982570, 3172112, 3965140, 4956425, 7930280, 9912850, 15860560, 19825700, 39651400, 79302800]

約数ペア:

[(1, 79302800), (2, 39651400), (4, 19825700), (5, 15860560), (8, 9912850), (10, 7930280), (16, 4956425), (20, 3965140), (25, 3172112), (40, 1982570), (50, 1586056), (80, 991285), (100, 793028), (200, 396514), (400, 198257)]