31988240

素因数分解:

$2^4\times 5^1\times {\mathrm{399853}}^1$

素因数の和:399866

約数の個数: 20

約数和(自身を含む): 74372844

約数和(自身を除く): 42384604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 399853, 799706, 1599412, 1999265, 3198824, 3998530, 6397648, 7997060, 15994120, 31988240]

約数ペア:

[(1, 31988240), (2, 15994120), (4, 7997060), (5, 6397648), (8, 3998530), (10, 3198824), (16, 1999265), (20, 1599412), (40, 799706), (80, 399853)]