5128400

素因数分解:

$2^4\times 5^2\times {\mathrm{12821}}^1$

素因数の和:12839

約数の個数: 30

約数和(自身を含む): 12321942

約数和(自身を除く): 7193542

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 12821, 25642, 51284, 64105, 102568, 128210, 205136, 256420, 320525, 512840, 641050, 1025680, 1282100, 2564200, 5128400]

約数ペア:

[(1, 5128400), (2, 2564200), (4, 1282100), (5, 1025680), (8, 641050), (10, 512840), (16, 320525), (20, 256420), (25, 205136), (40, 128210), (50, 102568), (80, 64105), (100, 51284), (200, 25642), (400, 12821)]