80190990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81001}}^1$

素因数の和:81025

約数の個数: 48

約数和(自身を含む): 227453616

約数和(自身を除く): 147262626

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 81001, 162002, 243003, 405005, 486006, 729009, 810010, 891011, 1215015, 1458018, 1782022, 2430030, 2673033, 3645045, 4455055, 5346066, 7290090, 8019099, 8910110, 13365165, 16038198, 26730330, 40095495, 80190990]

約数ペア:

[(1, 80190990), (2, 40095495), (3, 26730330), (5, 16038198), (6, 13365165), (9, 8910110), (10, 8019099), (11, 7290090), (15, 5346066), (18, 4455055), (22, 3645045), (30, 2673033), (33, 2430030), (45, 1782022), (55, 1458018), (66, 1215015), (90, 891011), (99, 810010), (110, 729009), (165, 486006), (198, 405005), (330, 243003), (495, 162002), (990, 81001)]