1987240

素因数分解:

$2^3\times 5^1\times {\mathrm{49681}}^1$

素因数の和:49692

約数の個数: 16

約数和(自身を含む): 4471380

約数和(自身を除く): 2484140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 49681, 99362, 198724, 248405, 397448, 496810, 993620, 1987240]

約数ペア:

[(1, 1987240), (2, 993620), (4, 496810), (5, 397448), (8, 248405), (10, 198724), (20, 99362), (40, 49681)]