81730440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20639}}^1$

素因数の和:20667

約数の個数: 96

約数和(自身を含む): 289785600

約数和(自身を除く): 208055160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 20639, 41278, 61917, 82556, 103195, 123834, 165112, 185751, 206390, 227029, 247668, 309585, 371502, 412780, 454058, 495336, 619170, 681087, 743004, 825560, 908116, 928755, 1135145, 1238340, 1362174, 1486008, 1816232, 1857510, 2043261, 2270290, 2476680, 2724348, 3405435, 3715020, 4086522, 4540580, 5448696, 6810870, 7430040, 8173044, 9081160, 10216305, 13621740, 16346088, 20432610, 27243480, 40865220, 81730440]

約数ペア:

[(1, 81730440), (2, 40865220), (3, 27243480), (4, 20432610), (5, 16346088), (6, 13621740), (8, 10216305), (9, 9081160), (10, 8173044), (11, 7430040), (12, 6810870), (15, 5448696), (18, 4540580), (20, 4086522), (22, 3715020), (24, 3405435), (30, 2724348), (33, 2476680), (36, 2270290), (40, 2043261), (44, 1857510), (45, 1816232), (55, 1486008), (60, 1362174), (66, 1238340), (72, 1135145), (88, 928755), (90, 908116), (99, 825560), (110, 743004), (120, 681087), (132, 619170), (165, 495336), (180, 454058), (198, 412780), (220, 371502), (264, 309585), (330, 247668), (360, 227029), (396, 206390), (440, 185751), (495, 165112), (660, 123834), (792, 103195), (990, 82556), (1320, 61917), (1980, 41278), (3960, 20639)]