72784980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{251}}^1$

素因数の和:451

約数の個数: 120

約数和(自身を含む): 230519520

約数和(自身を除く): 157734540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 179, 180, 251, 270, 324, 358, 405, 502, 537, 540, 716, 753, 810, 895, 1004, 1074, 1255, 1506, 1611, 1620, 1790, 2148, 2259, 2510, 2685, 3012, 3222, 3580, 3765, 4518, 4833, 5020, 5370, 6444, 6777, 7530, 8055, 9036, 9666, 10740, 11295, 13554, 14499, 15060, 16110, 19332, 20331, 22590, 24165, 27108, 28998, 32220, 33885, 40662, 44929, 45180, 48330, 57996, 67770, 72495, 81324, 89858, 96660, 101655, 134787, 135540, 144990, 179716, 203310, 224645, 269574, 289980, 404361, 406620, 449290, 539148, 673935, 808722, 898580, 1213083, 1347870, 1617444, 2021805, 2426166, 2695740, 3639249, 4043610, 4852332, 6065415, 7278498, 8087220, 12130830, 14556996, 18196245, 24261660, 36392490, 72784980]

約数ペア:

[(1, 72784980), (2, 36392490), (3, 24261660), (4, 18196245), (5, 14556996), (6, 12130830), (9, 8087220), (10, 7278498), (12, 6065415), (15, 4852332), (18, 4043610), (20, 3639249), (27, 2695740), (30, 2426166), (36, 2021805), (45, 1617444), (54, 1347870), (60, 1213083), (81, 898580), (90, 808722), (108, 673935), (135, 539148), (162, 449290), (179, 406620), (180, 404361), (251, 289980), (270, 269574), (324, 224645), (358, 203310), (405, 179716), (502, 144990), (537, 135540), (540, 134787), (716, 101655), (753, 96660), (810, 89858), (895, 81324), (1004, 72495), (1074, 67770), (1255, 57996), (1506, 48330), (1611, 45180), (1620, 44929), (1790, 40662), (2148, 33885), (2259, 32220), (2510, 28998), (2685, 27108), (3012, 24165), (3222, 22590), (3580, 20331), (3765, 19332), (4518, 16110), (4833, 15060), (5020, 14499), (5370, 13554), (6444, 11295), (6777, 10740), (7530, 9666), (8055, 9036)]