19872400

素因数分解:

$2^4\times 5^2\times {\mathrm{49681}}^1$

素因数の和:49699

約数の個数: 30

約数和(自身を含む): 47744402

約数和(自身を除く): 27872002

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 49681, 99362, 198724, 248405, 397448, 496810, 794896, 993620, 1242025, 1987240, 2484050, 3974480, 4968100, 9936200, 19872400]

約数ペア:

[(1, 19872400), (2, 9936200), (4, 4968100), (5, 3974480), (8, 2484050), (10, 1987240), (16, 1242025), (20, 993620), (25, 794896), (40, 496810), (50, 397448), (80, 248405), (100, 198724), (200, 99362), (400, 49681)]