81240840

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{75223}}^1$

素因数の和:75243

約数の個数: 64

約数和(自身を含む): 270806400

約数和(自身を除く): 189565560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 75223, 150446, 225669, 300892, 376115, 451338, 601784, 677007, 752230, 902676, 1128345, 1354014, 1504460, 1805352, 2031021, 2256690, 2708028, 3008920, 3385035, 4062042, 4513380, 5416056, 6770070, 8124084, 9026760, 10155105, 13540140, 16248168, 20310210, 27080280, 40620420, 81240840]

約数ペア:

[(1, 81240840), (2, 40620420), (3, 27080280), (4, 20310210), (5, 16248168), (6, 13540140), (8, 10155105), (9, 9026760), (10, 8124084), (12, 6770070), (15, 5416056), (18, 4513380), (20, 4062042), (24, 3385035), (27, 3008920), (30, 2708028), (36, 2256690), (40, 2031021), (45, 1805352), (54, 1504460), (60, 1354014), (72, 1128345), (90, 902676), (108, 752230), (120, 677007), (135, 601784), (180, 451338), (216, 376115), (270, 300892), (360, 225669), (540, 150446), (1080, 75223)]