221991480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{616643}}^1$

素因数の和:616660

約数の個数: 48

約数和(自身を含む): 721473480

約数和(自身を除く): 499482000

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, 616643, 1233286, 1849929, 2466572, 3083215, 3699858, 4933144, 5549787, 6166430, 7399716, 9249645, 11099574, 12332860, 14799432, 18499290, 22199148, 24665720, 27748935, 36998580, 44398296, 55497870, 73997160, 110995740, 221991480]

約数ペア:

[(1, 221991480), (2, 110995740), (3, 73997160), (4, 55497870), (5, 44398296), (6, 36998580), (8, 27748935), (9, 24665720), (10, 22199148), (12, 18499290), (15, 14799432), (18, 12332860), (20, 11099574), (24, 9249645), (30, 7399716), (36, 6166430), (40, 5549787), (45, 4933144), (60, 3699858), (72, 3083215), (90, 2466572), (120, 1849929), (180, 1233286), (360, 616643)]