19809180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110051}}^1$

素因数の和:110066

約数の個数: 36

約数和(自身を含む): 60088392

約数和(自身を除く): 40279212

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110051, 220102, 330153, 440204, 550255, 660306, 990459, 1100510, 1320612, 1650765, 1980918, 2201020, 3301530, 3961836, 4952295, 6603060, 9904590, 19809180]

約数ペア:

[(1, 19809180), (2, 9904590), (3, 6603060), (4, 4952295), (5, 3961836), (6, 3301530), (9, 2201020), (10, 1980918), (12, 1650765), (15, 1320612), (18, 1100510), (20, 990459), (30, 660306), (36, 550255), (45, 440204), (60, 330153), (90, 220102), (180, 110051)]