157428400

素因数分解:

$2^4\times 5^2\times {\mathrm{393571}}^1$

素因数の和:393589

約数の個数: 30

約数和(自身を含む): 378222692

約数和(自身を除く): 220794292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 393571, 787142, 1574284, 1967855, 3148568, 3935710, 6297136, 7871420, 9839275, 15742840, 19678550, 31485680, 39357100, 78714200, 157428400]

約数ペア:

[(1, 157428400), (2, 78714200), (4, 39357100), (5, 31485680), (8, 19678550), (10, 15742840), (16, 9839275), (20, 7871420), (25, 6297136), (40, 3935710), (50, 3148568), (80, 1967855), (100, 1574284), (200, 787142), (400, 393571)]