138601980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{70001}}^1$

素因数の和:70027

約数の個数: 72

約数和(自身を含む): 458653104

約数和(自身を除く): 320051124

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, 70001, 140002, 210003, 280004, 350005, 420006, 630009, 700010, 770011, 840012, 1050015, 1260018, 1400020, 1540022, 2100030, 2310033, 2520036, 3080044, 3150045, 3850055, 4200060, 4620066, 6300090, 6930099, 7700110, 9240132, 11550165, 12600180, 13860198, 15400220, 23100330, 27720396, 34650495, 46200660, 69300990, 138601980]

約数ペア:

[(1, 138601980), (2, 69300990), (3, 46200660), (4, 34650495), (5, 27720396), (6, 23100330), (9, 15400220), (10, 13860198), (11, 12600180), (12, 11550165), (15, 9240132), (18, 7700110), (20, 6930099), (22, 6300090), (30, 4620066), (33, 4200060), (36, 3850055), (44, 3150045), (45, 3080044), (55, 2520036), (60, 2310033), (66, 2100030), (90, 1540022), (99, 1400020), (110, 1260018), (132, 1050015), (165, 840012), (180, 770011), (198, 700010), (220, 630009), (330, 420006), (396, 350005), (495, 280004), (660, 210003), (990, 140002), (1980, 70001)]