9901980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1667}}^1$

素因数の和:1696

約数の個数: 96

約数和(自身を含む): 33626880

約数和(自身を除く): 23724900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 90, 99, 108, 110, 132, 135, 165, 180, 198, 220, 270, 297, 330, 396, 495, 540, 594, 660, 990, 1188, 1485, 1667, 1980, 2970, 3334, 5001, 5940, 6668, 8335, 10002, 15003, 16670, 18337, 20004, 25005, 30006, 33340, 36674, 45009, 50010, 55011, 60012, 73348, 75015, 90018, 91685, 100020, 110022, 150030, 165033, 180036, 183370, 220044, 225045, 275055, 300060, 330066, 366740, 450090, 495099, 550110, 660132, 825165, 900180, 990198, 1100220, 1650330, 1980396, 2475495, 3300660, 4950990, 9901980]

約数ペア:

[(1, 9901980), (2, 4950990), (3, 3300660), (4, 2475495), (5, 1980396), (6, 1650330), (9, 1100220), (10, 990198), (11, 900180), (12, 825165), (15, 660132), (18, 550110), (20, 495099), (22, 450090), (27, 366740), (30, 330066), (33, 300060), (36, 275055), (44, 225045), (45, 220044), (54, 183370), (55, 180036), (60, 165033), (66, 150030), (90, 110022), (99, 100020), (108, 91685), (110, 90018), (132, 75015), (135, 73348), (165, 60012), (180, 55011), (198, 50010), (220, 45009), (270, 36674), (297, 33340), (330, 30006), (396, 25005), (495, 20004), (540, 18337), (594, 16670), (660, 15003), (990, 10002), (1188, 8335), (1485, 6668), (1667, 5940), (1980, 5001), (2970, 3334)]