81499436

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{12049}}^1$

素因数の和:12161

約数の個数: 24

約数和(自身を含む): 151830000

約数和(自身を除く): 70330564

約数列:

[1, 2, 4, 19, 38, 76, 89, 178, 356, 1691, 3382, 6764, 12049, 24098, 48196, 228931, 457862, 915724, 1072361, 2144722, 4289444, 20374859, 40749718, 81499436]

約数ペア:

[(1, 81499436), (2, 40749718), (4, 20374859), (19, 4289444), (38, 2144722), (76, 1072361), (89, 915724), (178, 457862), (356, 228931), (1691, 48196), (3382, 24098), (6764, 12049)]