1272400

素因数分解:

$2^4\times 5^2\times {\mathrm{3181}}^1$

素因数の和:3199

約数の個数: 30

約数和(自身を含む): 3057902

約数和(自身を除く): 1785502

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 3181, 6362, 12724, 15905, 25448, 31810, 50896, 63620, 79525, 127240, 159050, 254480, 318100, 636200, 1272400]

約数ペア:

[(1, 1272400), (2, 636200), (4, 318100), (5, 254480), (8, 159050), (10, 127240), (16, 79525), (20, 63620), (25, 50896), (40, 31810), (50, 25448), (80, 15905), (100, 12724), (200, 6362), (400, 3181)]