80721960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61153}}^1$

素因数の和:61178

約数の個数: 64

約数和(自身を含む): 264185280

約数和(自身を除く): 183463320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 61153, 122306, 183459, 244612, 305765, 366918, 489224, 611530, 672683, 733836, 917295, 1223060, 1345366, 1467672, 1834590, 2018049, 2446120, 2690732, 3363415, 3669180, 4036098, 5381464, 6726830, 7338360, 8072196, 10090245, 13453660, 16144392, 20180490, 26907320, 40360980, 80721960]

約数ペア:

[(1, 80721960), (2, 40360980), (3, 26907320), (4, 20180490), (5, 16144392), (6, 13453660), (8, 10090245), (10, 8072196), (11, 7338360), (12, 6726830), (15, 5381464), (20, 4036098), (22, 3669180), (24, 3363415), (30, 2690732), (33, 2446120), (40, 2018049), (44, 1834590), (55, 1467672), (60, 1345366), (66, 1223060), (88, 917295), (110, 733836), (120, 672683), (132, 611530), (165, 489224), (220, 366918), (264, 305765), (330, 244612), (440, 183459), (660, 122306), (1320, 61153)]