81890144

素因数分解:

$2^5\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1301}}^1$

素因数の和:1599

約数の個数: 48

約数和(自身を含む): 185050656

約数和(自身を除く): 103160512

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 281, 562, 1124, 1301, 1967, 2248, 2602, 3934, 4496, 5204, 7868, 8992, 9107, 10408, 15736, 18214, 20816, 31472, 36428, 41632, 62944, 72856, 145712, 291424, 365581, 731162, 1462324, 2559067, 2924648, 5118134, 5849296, 10236268, 11698592, 20472536, 40945072, 81890144]

約数ペア:

[(1, 81890144), (2, 40945072), (4, 20472536), (7, 11698592), (8, 10236268), (14, 5849296), (16, 5118134), (28, 2924648), (32, 2559067), (56, 1462324), (112, 731162), (224, 365581), (281, 291424), (562, 145712), (1124, 72856), (1301, 62944), (1967, 41632), (2248, 36428), (2602, 31472), (3934, 20816), (4496, 18214), (5204, 15736), (7868, 10408), (8992, 9107)]