81201780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41011}}^1$

素因数の和:41037

約数の個数: 72

約数和(自身を含む): 268710624

約数和(自身を除く): 187508844

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, 41011, 82022, 123033, 164044, 205055, 246066, 369099, 410110, 451121, 492132, 615165, 738198, 820220, 902242, 1230330, 1353363, 1476396, 1804484, 1845495, 2255605, 2460660, 2706726, 3690990, 4060089, 4511210, 5413452, 6766815, 7381980, 8120178, 9022420, 13533630, 16240356, 20300445, 27067260, 40600890, 81201780]

約数ペア:

[(1, 81201780), (2, 40600890), (3, 27067260), (4, 20300445), (5, 16240356), (6, 13533630), (9, 9022420), (10, 8120178), (11, 7381980), (12, 6766815), (15, 5413452), (18, 4511210), (20, 4060089), (22, 3690990), (30, 2706726), (33, 2460660), (36, 2255605), (44, 1845495), (45, 1804484), (55, 1476396), (60, 1353363), (66, 1230330), (90, 902242), (99, 820220), (110, 738198), (132, 615165), (165, 492132), (180, 451121), (198, 410110), (220, 369099), (330, 246066), (396, 205055), (495, 164044), (660, 123033), (990, 82022), (1980, 41011)]