28776400

素因数分解:

$2^4\times 5^2\times {\mathrm{71941}}^1$

素因数の和:71959

約数の個数: 30

約数和(自身を含む): 69136262

約数和(自身を除く): 40359862

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 71941, 143882, 287764, 359705, 575528, 719410, 1151056, 1438820, 1798525, 2877640, 3597050, 5755280, 7194100, 14388200, 28776400]

約数ペア:

[(1, 28776400), (2, 14388200), (4, 7194100), (5, 5755280), (8, 3597050), (10, 2877640), (16, 1798525), (20, 1438820), (25, 1151056), (40, 719410), (50, 575528), (80, 359705), (100, 287764), (200, 143882), (400, 71941)]