81432180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{452401}}^1$

素因数の和:452416

約数の個数: 36

約数和(自身を含む): 247011492

約数和(自身を除く): 165579312

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 452401, 904802, 1357203, 1809604, 2262005, 2714406, 4071609, 4524010, 5428812, 6786015, 8143218, 9048020, 13572030, 16286436, 20358045, 27144060, 40716090, 81432180]

約数ペア:

[(1, 81432180), (2, 40716090), (3, 27144060), (4, 20358045), (5, 16286436), (6, 13572030), (9, 9048020), (10, 8143218), (12, 6786015), (15, 5428812), (18, 4524010), (20, 4071609), (30, 2714406), (36, 2262005), (45, 1809604), (60, 1357203), (90, 904802), (180, 452401)]