81845516

素因数分解:

$2^2\times {\mathrm{199}}^1\times {\mathrm{229}}^1\times {\mathrm{449}}^1$

素因数の和:881

約数の個数: 24

約数和(自身を含む): 144900000

約数和(自身を除く): 63054484

約数列:

[1, 2, 4, 199, 229, 398, 449, 458, 796, 898, 916, 1796, 45571, 89351, 91142, 102821, 178702, 182284, 205642, 357404, 411284, 20461379, 40922758, 81845516]

約数ペア:

[(1, 81845516), (2, 40922758), (4, 20461379), (199, 411284), (229, 357404), (398, 205642), (449, 182284), (458, 178702), (796, 102821), (898, 91142), (916, 89351), (1796, 45571)]