172640848

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{634709}}^1$

素因数の和:634734

約数の個数: 20

約数和(自身を含む): 354168180

約数和(自身を除く): 181527332

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 634709, 1269418, 2538836, 5077672, 10155344, 10790053, 21580106, 43160212, 86320424, 172640848]

約数ペア:

[(1, 172640848), (2, 86320424), (4, 43160212), (8, 21580106), (16, 10790053), (17, 10155344), (34, 5077672), (68, 2538836), (136, 1269418), (272, 634709)]