20890250

素因数分解:

$2^1\times 5^3\times {\mathrm{83561}}^1$

素因数の和:83578

約数の個数: 16

約数和(自身を含む): 39107016

約数和(自身を除く): 18216766

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 83561, 167122, 417805, 835610, 2089025, 4178050, 10445125, 20890250]

約数ペア:

[(1, 20890250), (2, 10445125), (5, 4178050), (10, 2089025), (25, 835610), (50, 417805), (125, 167122), (250, 83561)]