78052400

素因数分解:

$2^4\times 5^2\times {\mathrm{195131}}^1$

素因数の和:195149

約数の個数: 30

約数和(自身を含む): 187521852

約数和(自身を除く): 109469452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 195131, 390262, 780524, 975655, 1561048, 1951310, 3122096, 3902620, 4878275, 7805240, 9756550, 15610480, 19513100, 39026200, 78052400]

約数ペア:

[(1, 78052400), (2, 39026200), (4, 19513100), (5, 15610480), (8, 9756550), (10, 7805240), (16, 4878275), (20, 3902620), (25, 3122096), (40, 1951310), (50, 1561048), (80, 975655), (100, 780524), (200, 390262), (400, 195131)]