8913080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:500

約数の個数: 64

約数和(自身を含む): 22394880

約数和(自身を除く): 13481800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 431, 440, 470, 517, 862, 940, 1034, 1724, 1880, 2068, 2155, 2585, 3448, 4136, 4310, 4741, 5170, 8620, 9482, 10340, 17240, 18964, 20257, 20680, 23705, 37928, 40514, 47410, 81028, 94820, 101285, 162056, 189640, 202570, 222827, 405140, 445654, 810280, 891308, 1114135, 1782616, 2228270, 4456540, 8913080]

約数ペア:

[(1, 8913080), (2, 4456540), (4, 2228270), (5, 1782616), (8, 1114135), (10, 891308), (11, 810280), (20, 445654), (22, 405140), (40, 222827), (44, 202570), (47, 189640), (55, 162056), (88, 101285), (94, 94820), (110, 81028), (188, 47410), (220, 40514), (235, 37928), (376, 23705), (431, 20680), (440, 20257), (470, 18964), (517, 17240), (862, 10340), (940, 9482), (1034, 8620), (1724, 5170), (1880, 4741), (2068, 4310), (2155, 4136), (2585, 3448)]