80549584

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{122789}}^1$

素因数の和:122838

約数の個数: 20

約数和(自身を含む): 159872580

約数和(自身を除く): 79322996

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 122789, 245578, 491156, 982312, 1964624, 5034349, 10068698, 20137396, 40274792, 80549584]

約数ペア:

[(1, 80549584), (2, 40274792), (4, 20137396), (8, 10068698), (16, 5034349), (41, 1964624), (82, 982312), (164, 491156), (328, 245578), (656, 122789)]