81855180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41341}}^1$

素因数の和:41367

約数の個数: 72

約数和(自身を含む): 270872784

約数和(自身を除く): 189017604

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 41341, 82682, 124023, 165364, 206705, 248046, 372069, 413410, 454751, 496092, 620115, 744138, 826820, 909502, 1240230, 1364253, 1488276, 1819004, 1860345, 2273755, 2480460, 2728506, 3720690, 4092759, 4547510, 5457012, 6821265, 7441380, 8185518, 9095020, 13642530, 16371036, 20463795, 27285060, 40927590, 81855180]

約数ペア:

[(1, 81855180), (2, 40927590), (3, 27285060), (4, 20463795), (5, 16371036), (6, 13642530), (9, 9095020), (10, 8185518), (11, 7441380), (12, 6821265), (15, 5457012), (18, 4547510), (20, 4092759), (22, 3720690), (30, 2728506), (33, 2480460), (36, 2273755), (44, 1860345), (45, 1819004), (55, 1488276), (60, 1364253), (66, 1240230), (90, 909502), (99, 826820), (110, 744138), (132, 620115), (165, 496092), (180, 454751), (198, 413410), (220, 372069), (330, 248046), (396, 206705), (495, 165364), (660, 124023), (990, 82682), (1980, 41341)]