81965984

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1559}}^1$

素因数の和:1653

約数の個数: 48

約数和(自身を含む): 169827840

約数和(自身を除く): 87861856

約数列:

[1, 2, 4, 8, 16, 31, 32, 53, 62, 106, 124, 212, 248, 424, 496, 848, 992, 1559, 1643, 1696, 3118, 3286, 6236, 6572, 12472, 13144, 24944, 26288, 48329, 49888, 52576, 82627, 96658, 165254, 193316, 330508, 386632, 661016, 773264, 1322032, 1546528, 2561437, 2644064, 5122874, 10245748, 20491496, 40982992, 81965984]

約数ペア:

[(1, 81965984), (2, 40982992), (4, 20491496), (8, 10245748), (16, 5122874), (31, 2644064), (32, 2561437), (53, 1546528), (62, 1322032), (106, 773264), (124, 661016), (212, 386632), (248, 330508), (424, 193316), (496, 165254), (848, 96658), (992, 82627), (1559, 52576), (1643, 49888), (1696, 48329), (3118, 26288), (3286, 24944), (6236, 13144), (6572, 12472)]