199915020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{370213}}^1$

素因数の和:370231

約数の個数: 48

約数和(自身を含む): 621959520

約数和(自身を除く): 422044500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 370213, 740426, 1110639, 1480852, 1851065, 2221278, 3331917, 3702130, 4442556, 5553195, 6663834, 7404260, 9995751, 11106390, 13327668, 16659585, 19991502, 22212780, 33319170, 39983004, 49978755, 66638340, 99957510, 199915020]

約数ペア:

[(1, 199915020), (2, 99957510), (3, 66638340), (4, 49978755), (5, 39983004), (6, 33319170), (9, 22212780), (10, 19991502), (12, 16659585), (15, 13327668), (18, 11106390), (20, 9995751), (27, 7404260), (30, 6663834), (36, 5553195), (45, 4442556), (54, 3702130), (60, 3331917), (90, 2221278), (108, 1851065), (135, 1480852), (180, 1110639), (270, 740426), (540, 370213)]