129431600

素因数分解:

$2^4\times 5^2\times {\mathrm{323579}}^1$

素因数の和:323597

約数の個数: 30

約数和(自身を含む): 310960380

約数和(自身を除く): 181528780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 323579, 647158, 1294316, 1617895, 2588632, 3235790, 5177264, 6471580, 8089475, 12943160, 16178950, 25886320, 32357900, 64715800, 129431600]

約数ペア:

[(1, 129431600), (2, 64715800), (4, 32357900), (5, 25886320), (8, 16178950), (10, 12943160), (16, 8089475), (20, 6471580), (25, 5177264), (40, 3235790), (50, 2588632), (80, 1617895), (100, 1294316), (200, 647158), (400, 323579)]