81352400

素因数分解:

$2^4\times 5^2\times {\mathrm{203381}}^1$

素因数の和:203399

約数の個数: 30

約数和(自身を含む): 195450102

約数和(自身を除く): 114097702

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 203381, 406762, 813524, 1016905, 1627048, 2033810, 3254096, 4067620, 5084525, 8135240, 10169050, 16270480, 20338100, 40676200, 81352400]

約数ペア:

[(1, 81352400), (2, 40676200), (4, 20338100), (5, 16270480), (8, 10169050), (10, 8135240), (16, 5084525), (20, 4067620), (25, 3254096), (40, 2033810), (50, 1627048), (80, 1016905), (100, 813524), (200, 406762), (400, 203381)]