31500180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1259}}^1$

素因数の和:1413

約数の個数: 72

約数和(自身を含む): 96314400

約数和(自身を除く): 64814220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1259, 1390, 1668, 2085, 2502, 2518, 2780, 3777, 4170, 5004, 5036, 6255, 6295, 7554, 8340, 11331, 12510, 12590, 15108, 18885, 22662, 25020, 25180, 37770, 45324, 56655, 75540, 113310, 175001, 226620, 350002, 525003, 700004, 875005, 1050006, 1575009, 1750010, 2100012, 2625015, 3150018, 3500020, 5250030, 6300036, 7875045, 10500060, 15750090, 31500180]

約数ペア:

[(1, 31500180), (2, 15750090), (3, 10500060), (4, 7875045), (5, 6300036), (6, 5250030), (9, 3500020), (10, 3150018), (12, 2625015), (15, 2100012), (18, 1750010), (20, 1575009), (30, 1050006), (36, 875005), (45, 700004), (60, 525003), (90, 350002), (139, 226620), (180, 175001), (278, 113310), (417, 75540), (556, 56655), (695, 45324), (834, 37770), (1251, 25180), (1259, 25020), (1390, 22662), (1668, 18885), (2085, 15108), (2502, 12590), (2518, 12510), (2780, 11331), (3777, 8340), (4170, 7554), (5004, 6295), (5036, 6255)]