640757904

素因数分解:

$2^4\times 3^1\times {\mathrm{13349123}}^1$

素因数の和:13349134

約数の個数: 20

約数和(自身を含む): 1655291376

約数和(自身を除く): 1014533472

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 13349123, 26698246, 40047369, 53396492, 80094738, 106792984, 160189476, 213585968, 320378952, 640757904]

約数ペア:

[(1, 640757904), (2, 320378952), (3, 213585968), (4, 160189476), (6, 106792984), (8, 80094738), (12, 53396492), (16, 40047369), (24, 26698246), (48, 13349123)]