81377776

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{17599}}^1$

素因数の和:17641

約数の個数: 30

約数和(自身を含む): 167499200

約数和(自身を除く): 86121424

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 289, 578, 1156, 2312, 4624, 17599, 35198, 70396, 140792, 281584, 299183, 598366, 1196732, 2393464, 4786928, 5086111, 10172222, 20344444, 40688888, 81377776]

約数ペア:

[(1, 81377776), (2, 40688888), (4, 20344444), (8, 10172222), (16, 5086111), (17, 4786928), (34, 2393464), (68, 1196732), (136, 598366), (272, 299183), (289, 281584), (578, 140792), (1156, 70396), (2312, 35198), (4624, 17599)]