19800360

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{55001}}^1$

素因数の和:55018

約数の個数: 48

約数和(自身を含む): 64352340

約数和(自身を除く): 44551980

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 55001, 110002, 165003, 220004, 275005, 330006, 440008, 495009, 550010, 660012, 825015, 990018, 1100020, 1320024, 1650030, 1980036, 2200040, 2475045, 3300060, 3960072, 4950090, 6600120, 9900180, 19800360]

約数ペア:

[(1, 19800360), (2, 9900180), (3, 6600120), (4, 4950090), (5, 3960072), (6, 3300060), (8, 2475045), (9, 2200040), (10, 1980036), (12, 1650030), (15, 1320024), (18, 1100020), (20, 990018), (24, 825015), (30, 660012), (36, 550010), (40, 495009), (45, 440008), (60, 330006), (72, 275005), (90, 220004), (120, 165003), (180, 110002), (360, 55001)]