81162328

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{18149}}^1$

素因数の和:18211

約数の個数: 32

約数和(自身を含む): 167706000

約数和(自身を除く): 86543672

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 18149, 36298, 72596, 145192, 235937, 471874, 780407, 943748, 1560814, 1887496, 3121628, 6243256, 10145291, 20290582, 40581164, 81162328]

約数ペア:

[(1, 81162328), (2, 40581164), (4, 20290582), (8, 10145291), (13, 6243256), (26, 3121628), (43, 1887496), (52, 1560814), (86, 943748), (104, 780407), (172, 471874), (344, 235937), (559, 145192), (1118, 72596), (2236, 36298), (4472, 18149)]