254328400

素因数分解:

$2^4\times 5^2\times {\mathrm{635821}}^1$

素因数の和:635839

約数の個数: 30

約数和(自身を含む): 611024942

約数和(自身を除く): 356696542

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 635821, 1271642, 2543284, 3179105, 5086568, 6358210, 10173136, 12716420, 15895525, 25432840, 31791050, 50865680, 63582100, 127164200, 254328400]

約数ペア:

[(1, 254328400), (2, 127164200), (4, 63582100), (5, 50865680), (8, 31791050), (10, 25432840), (16, 15895525), (20, 12716420), (25, 10173136), (40, 6358210), (50, 5086568), (80, 3179105), (100, 2543284), (200, 1271642), (400, 635821)]