81013268

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{17971}}^1$

素因数の和:18012

約数の個数: 36

約数和(自身を含む): 172099872

約数和(自身を除く): 91086604

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 2254, 4508, 17971, 35942, 71884, 125797, 251594, 413333, 503188, 826666, 880579, 1653332, 1761158, 2893331, 3522316, 5786662, 11573324, 20253317, 40506634, 81013268]

約数ペア:

[(1, 81013268), (2, 40506634), (4, 20253317), (7, 11573324), (14, 5786662), (23, 3522316), (28, 2893331), (46, 1761158), (49, 1653332), (92, 880579), (98, 826666), (161, 503188), (196, 413333), (322, 251594), (644, 125797), (1127, 71884), (2254, 35942), (4508, 17971)]