80621640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20359}}^1$

素因数の和:20387

約数の個数: 96

約数和(自身を含む): 285854400

約数和(自身を除く): 205232760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 20359, 40718, 61077, 81436, 101795, 122154, 162872, 183231, 203590, 223949, 244308, 305385, 366462, 407180, 447898, 488616, 610770, 671847, 732924, 814360, 895796, 916155, 1119745, 1221540, 1343694, 1465848, 1791592, 1832310, 2015541, 2239490, 2443080, 2687388, 3359235, 3664620, 4031082, 4478980, 5374776, 6718470, 7329240, 8062164, 8957960, 10077705, 13436940, 16124328, 20155410, 26873880, 40310820, 80621640]

約数ペア:

[(1, 80621640), (2, 40310820), (3, 26873880), (4, 20155410), (5, 16124328), (6, 13436940), (8, 10077705), (9, 8957960), (10, 8062164), (11, 7329240), (12, 6718470), (15, 5374776), (18, 4478980), (20, 4031082), (22, 3664620), (24, 3359235), (30, 2687388), (33, 2443080), (36, 2239490), (40, 2015541), (44, 1832310), (45, 1791592), (55, 1465848), (60, 1343694), (66, 1221540), (72, 1119745), (88, 916155), (90, 895796), (99, 814360), (110, 732924), (120, 671847), (132, 610770), (165, 488616), (180, 447898), (198, 407180), (220, 366462), (264, 305385), (330, 244308), (360, 223949), (396, 203590), (440, 183231), (495, 162872), (660, 122154), (792, 101795), (990, 81436), (1320, 61077), (1980, 40718), (3960, 20359)]