81189008

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{709}}^1$

素因数の和:1155

約数の個数: 40

約数和(自身を含む): 167187960

約数和(自身を除く): 85998952

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 421, 709, 842, 1418, 1684, 2836, 3368, 5672, 6736, 7157, 11344, 12053, 14314, 24106, 28628, 48212, 57256, 96424, 114512, 192848, 298489, 596978, 1193956, 2387912, 4775824, 5074313, 10148626, 20297252, 40594504, 81189008]

約数ペア:

[(1, 81189008), (2, 40594504), (4, 20297252), (8, 10148626), (16, 5074313), (17, 4775824), (34, 2387912), (68, 1193956), (136, 596978), (272, 298489), (421, 192848), (709, 114512), (842, 96424), (1418, 57256), (1684, 48212), (2836, 28628), (3368, 24106), (5672, 14314), (6736, 12053), (7157, 11344)]