84356680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51437}}^1$

素因数の和:51489

約数の個数: 32

約数和(自身を含む): 194435640

約数和(自身を除く): 110078960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 51437, 102874, 205748, 257185, 411496, 514370, 1028740, 2057480, 2108917, 4217834, 8435668, 10544585, 16871336, 21089170, 42178340, 84356680]

約数ペア:

[(1, 84356680), (2, 42178340), (4, 21089170), (5, 16871336), (8, 10544585), (10, 8435668), (20, 4217834), (40, 2108917), (41, 2057480), (82, 1028740), (164, 514370), (205, 411496), (328, 257185), (410, 205748), (820, 102874), (1640, 51437)]