64204120

素因数分解:

$2^3\times 5^1\times {\mathrm{1605103}}^1$

素因数の和:1605114

約数の個数: 16

約数和(自身を含む): 144459360

約数和(自身を除く): 80255240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1605103, 3210206, 6420412, 8025515, 12840824, 16051030, 32102060, 64204120]

約数ペア:

[(1, 64204120), (2, 32102060), (4, 16051030), (5, 12840824), (8, 8025515), (10, 6420412), (20, 3210206), (40, 1605103)]