81243180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{601}}^1\times {\mathrm{751}}^1$

素因数の和:1367

約数の個数: 72

約数和(自身を含む): 247176384

約数和(自身を除く): 165933204

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 601, 751, 1202, 1502, 1803, 2253, 2404, 3004, 3005, 3606, 3755, 4506, 5409, 6010, 6759, 7212, 7510, 9012, 9015, 10818, 11265, 12020, 13518, 15020, 18030, 21636, 22530, 27036, 27045, 33795, 36060, 45060, 54090, 67590, 108180, 135180, 451351, 902702, 1354053, 1805404, 2256755, 2708106, 4062159, 4513510, 5416212, 6770265, 8124318, 9027020, 13540530, 16248636, 20310795, 27081060, 40621590, 81243180]

約数ペア:

[(1, 81243180), (2, 40621590), (3, 27081060), (4, 20310795), (5, 16248636), (6, 13540530), (9, 9027020), (10, 8124318), (12, 6770265), (15, 5416212), (18, 4513510), (20, 4062159), (30, 2708106), (36, 2256755), (45, 1805404), (60, 1354053), (90, 902702), (180, 451351), (601, 135180), (751, 108180), (1202, 67590), (1502, 54090), (1803, 45060), (2253, 36060), (2404, 33795), (3004, 27045), (3005, 27036), (3606, 22530), (3755, 21636), (4506, 18030), (5409, 15020), (6010, 13518), (6759, 12020), (7212, 11265), (7510, 10818), (9012, 9015)]