78821968

素因数分解:

$2^4\times {\mathrm{397}}^1\times {\mathrm{12409}}^1$

素因数の和:12814

約数の個数: 20

約数和(自身を含む): 153114580

約数和(自身を除く): 74292612

約数列:

[1, 2, 4, 8, 16, 397, 794, 1588, 3176, 6352, 12409, 24818, 49636, 99272, 198544, 4926373, 9852746, 19705492, 39410984, 78821968]

約数ペア:

[(1, 78821968), (2, 39410984), (4, 19705492), (8, 9852746), (16, 4926373), (397, 198544), (794, 99272), (1588, 49636), (3176, 24818), (6352, 12409)]