4206278920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{12289}}^1$

素因数の和:12542

約数の個数: 64

約数和(自身を含む): 9733680000

約数和(自身を除く): 5527401080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 199, 215, 344, 398, 430, 796, 860, 995, 1592, 1720, 1990, 3980, 7960, 8557, 12289, 17114, 24578, 34228, 42785, 49156, 61445, 68456, 85570, 98312, 122890, 171140, 245780, 342280, 491560, 528427, 1056854, 2113708, 2445511, 2642135, 4227416, 4891022, 5284270, 9782044, 10568540, 12227555, 19564088, 21137080, 24455110, 48910220, 97820440, 105156973, 210313946, 420627892, 525784865, 841255784, 1051569730, 2103139460, 4206278920]

約数ペア:

[(1, 4206278920), (2, 2103139460), (4, 1051569730), (5, 841255784), (8, 525784865), (10, 420627892), (20, 210313946), (40, 105156973), (43, 97820440), (86, 48910220), (172, 24455110), (199, 21137080), (215, 19564088), (344, 12227555), (398, 10568540), (430, 9782044), (796, 5284270), (860, 4891022), (995, 4227416), (1592, 2642135), (1720, 2445511), (1990, 2113708), (3980, 1056854), (7960, 528427), (8557, 491560), (12289, 342280), (17114, 245780), (24578, 171140), (34228, 122890), (42785, 98312), (49156, 85570), (61445, 68456)]