81825904

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{5171}}^1$

素因数の和:5245

約数の個数: 40

約数和(自身を含む): 169310592

約数和(自身を除く): 87484688

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 86, 92, 172, 184, 344, 368, 688, 989, 1978, 3956, 5171, 7912, 10342, 15824, 20684, 41368, 82736, 118933, 222353, 237866, 444706, 475732, 889412, 951464, 1778824, 1902928, 3557648, 5114119, 10228238, 20456476, 40912952, 81825904]

約数ペア:

[(1, 81825904), (2, 40912952), (4, 20456476), (8, 10228238), (16, 5114119), (23, 3557648), (43, 1902928), (46, 1778824), (86, 951464), (92, 889412), (172, 475732), (184, 444706), (344, 237866), (368, 222353), (688, 118933), (989, 82736), (1978, 41368), (3956, 20684), (5171, 15824), (7912, 10342)]