68968400

素因数分解:

$2^4\times 5^2\times {\mathrm{172421}}^1$

素因数の和:172439

約数の個数: 30

約数和(自身を含む): 165697542

約数和(自身を除く): 96729142

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 172421, 344842, 689684, 862105, 1379368, 1724210, 2758736, 3448420, 4310525, 6896840, 8621050, 13793680, 17242100, 34484200, 68968400]

約数ペア:

[(1, 68968400), (2, 34484200), (4, 17242100), (5, 13793680), (8, 8621050), (10, 6896840), (16, 4310525), (20, 3448420), (25, 2758736), (40, 1724210), (50, 1379368), (80, 862105), (100, 689684), (200, 344842), (400, 172421)]