81288720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{112901}}^1$

素因数の和:112920

約数の個数: 60

約数和(自身を含む): 272997036

約数和(自身を除く): 191708316

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 112901, 225802, 338703, 451604, 564505, 677406, 903208, 1016109, 1129010, 1354812, 1693515, 1806416, 2032218, 2258020, 2709624, 3387030, 4064436, 4516040, 5080545, 5419248, 6774060, 8128872, 9032080, 10161090, 13548120, 16257744, 20322180, 27096240, 40644360, 81288720]

約数ペア:

[(1, 81288720), (2, 40644360), (3, 27096240), (4, 20322180), (5, 16257744), (6, 13548120), (8, 10161090), (9, 9032080), (10, 8128872), (12, 6774060), (15, 5419248), (16, 5080545), (18, 4516040), (20, 4064436), (24, 3387030), (30, 2709624), (36, 2258020), (40, 2032218), (45, 1806416), (48, 1693515), (60, 1354812), (72, 1129010), (80, 1016109), (90, 903208), (120, 677406), (144, 564505), (180, 451604), (240, 338703), (360, 225802), (720, 112901)]