78432400

素因数分解:

$2^4\times 5^2\times {\mathrm{196081}}^1$

素因数の和:196099

約数の個数: 30

約数和(自身を含む): 188434802

約数和(自身を除く): 110002402

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 196081, 392162, 784324, 980405, 1568648, 1960810, 3137296, 3921620, 4902025, 7843240, 9804050, 15686480, 19608100, 39216200, 78432400]

約数ペア:

[(1, 78432400), (2, 39216200), (4, 19608100), (5, 15686480), (8, 9804050), (10, 7843240), (16, 4902025), (20, 3921620), (25, 3137296), (40, 1960810), (50, 1568648), (80, 980405), (100, 784324), (200, 392162), (400, 196081)]