1663504840

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1\times {\mathrm{2053}}^1$

素因数の和:2542

約数の個数: 64

約数和(自身を含む): 3833256960

約数和(自身を除く): 2169752120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 431, 470, 862, 940, 1724, 1880, 2053, 2155, 3448, 4106, 4310, 8212, 8620, 10265, 16424, 17240, 20257, 20530, 40514, 41060, 81028, 82120, 96491, 101285, 162056, 192982, 202570, 385964, 405140, 482455, 771928, 810280, 884843, 964910, 1769686, 1929820, 3539372, 3859640, 4424215, 7078744, 8848430, 17696860, 35393720, 41587621, 83175242, 166350484, 207938105, 332700968, 415876210, 831752420, 1663504840]

約数ペア:

[(1, 1663504840), (2, 831752420), (4, 415876210), (5, 332700968), (8, 207938105), (10, 166350484), (20, 83175242), (40, 41587621), (47, 35393720), (94, 17696860), (188, 8848430), (235, 7078744), (376, 4424215), (431, 3859640), (470, 3539372), (862, 1929820), (940, 1769686), (1724, 964910), (1880, 884843), (2053, 810280), (2155, 771928), (3448, 482455), (4106, 405140), (4310, 385964), (8212, 202570), (8620, 192982), (10265, 162056), (16424, 101285), (17240, 96491), (20257, 82120), (20530, 81028), (40514, 41060)]