64643860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{190129}}^1$

素因数の和:190155

約数の個数: 24

約数和(自身を含む): 143738280

約数和(自身を除く): 79094420

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 190129, 380258, 760516, 950645, 1901290, 3232193, 3802580, 6464386, 12928772, 16160965, 32321930, 64643860]

約数ペア:

[(1, 64643860), (2, 32321930), (4, 16160965), (5, 12928772), (10, 6464386), (17, 3802580), (20, 3232193), (34, 1901290), (68, 950645), (85, 760516), (170, 380258), (340, 190129)]