81705240

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{75653}}^1$

素因数の和:75673

約数の個数: 64

約数和(自身を含む): 272354400

約数和(自身を除く): 190649160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 75653, 151306, 226959, 302612, 378265, 453918, 605224, 680877, 756530, 907836, 1134795, 1361754, 1513060, 1815672, 2042631, 2269590, 2723508, 3026120, 3404385, 4085262, 4539180, 5447016, 6808770, 8170524, 9078360, 10213155, 13617540, 16341048, 20426310, 27235080, 40852620, 81705240]

約数ペア:

[(1, 81705240), (2, 40852620), (3, 27235080), (4, 20426310), (5, 16341048), (6, 13617540), (8, 10213155), (9, 9078360), (10, 8170524), (12, 6808770), (15, 5447016), (18, 4539180), (20, 4085262), (24, 3404385), (27, 3026120), (30, 2723508), (36, 2269590), (40, 2042631), (45, 1815672), (54, 1513060), (60, 1361754), (72, 1134795), (90, 907836), (108, 756530), (120, 680877), (135, 605224), (180, 453918), (216, 378265), (270, 302612), (360, 226959), (540, 151306), (1080, 75653)]