81143784

素因数分解:

$2^3\times 3^2\times {\mathrm{307}}^1\times {\mathrm{3671}}^1$

素因数の和:3990

約数の個数: 48

約数和(自身を含む): 220540320

約数和(自身を除く): 139396536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 307, 614, 921, 1228, 1842, 2456, 2763, 3671, 3684, 5526, 7342, 7368, 11013, 11052, 14684, 22026, 22104, 29368, 33039, 44052, 66078, 88104, 132156, 264312, 1126997, 2253994, 3380991, 4507988, 6761982, 9015976, 10142973, 13523964, 20285946, 27047928, 40571892, 81143784]

約数ペア:

[(1, 81143784), (2, 40571892), (3, 27047928), (4, 20285946), (6, 13523964), (8, 10142973), (9, 9015976), (12, 6761982), (18, 4507988), (24, 3380991), (36, 2253994), (72, 1126997), (307, 264312), (614, 132156), (921, 88104), (1228, 66078), (1842, 44052), (2456, 33039), (2763, 29368), (3671, 22104), (3684, 22026), (5526, 14684), (7342, 11052), (7368, 11013)]