78952400

素因数分解:

$2^4\times 5^2\times {\mathrm{197381}}^1$

素因数の和:197399

約数の個数: 30

約数和(自身を含む): 189684102

約数和(自身を除く): 110731702

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 197381, 394762, 789524, 986905, 1579048, 1973810, 3158096, 3947620, 4934525, 7895240, 9869050, 15790480, 19738100, 39476200, 78952400]

約数ペア:

[(1, 78952400), (2, 39476200), (4, 19738100), (5, 15790480), (8, 9869050), (10, 7895240), (16, 4934525), (20, 3947620), (25, 3158096), (40, 1973810), (50, 1579048), (80, 986905), (100, 789524), (200, 394762), (400, 197381)]