81328340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239201}}^1$

素因数の和:239227

約数の個数: 24

約数和(自身を含む): 180836712

約数和(自身を除く): 99508372

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 239201, 478402, 956804, 1196005, 2392010, 4066417, 4784020, 8132834, 16265668, 20332085, 40664170, 81328340]

約数ペア:

[(1, 81328340), (2, 40664170), (4, 20332085), (5, 16265668), (10, 8132834), (17, 4784020), (20, 4066417), (34, 2392010), (68, 1196005), (85, 956804), (170, 478402), (340, 239201)]