18560520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:180

約数の個数: 192

約数和(自身を含む): 67953600

約数和(自身を除く): 49393080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 43, 44, 45, 55, 60, 66, 72, 86, 88, 90, 99, 109, 110, 120, 129, 132, 165, 172, 180, 198, 215, 218, 220, 258, 264, 327, 330, 344, 360, 387, 396, 430, 436, 440, 473, 495, 516, 545, 645, 654, 660, 774, 792, 860, 872, 946, 981, 990, 1032, 1090, 1199, 1290, 1308, 1320, 1419, 1548, 1635, 1720, 1892, 1935, 1962, 1980, 2180, 2365, 2398, 2580, 2616, 2838, 3096, 3270, 3597, 3784, 3870, 3924, 3960, 4257, 4360, 4687, 4730, 4796, 4905, 5160, 5676, 5995, 6540, 7095, 7194, 7740, 7848, 8514, 9374, 9460, 9592, 9810, 10791, 11352, 11990, 13080, 14061, 14190, 14388, 15480, 17028, 17985, 18748, 18920, 19620, 21285, 21582, 23435, 23980, 28122, 28380, 28776, 34056, 35970, 37496, 39240, 42183, 42570, 43164, 46870, 47960, 51557, 53955, 56244, 56760, 70305, 71940, 84366, 85140, 86328, 93740, 103114, 107910, 112488, 140610, 143880, 154671, 168732, 170280, 187480, 206228, 210915, 215820, 257785, 281220, 309342, 337464, 412456, 421830, 431640, 464013, 515570, 562440, 618684, 773355, 843660, 928026, 1031140, 1237368, 1546710, 1687320, 1856052, 2062280, 2320065, 3093420, 3712104, 4640130, 6186840, 9280260, 18560520]

約数ペア:

[(1, 18560520), (2, 9280260), (3, 6186840), (4, 4640130), (5, 3712104), (6, 3093420), (8, 2320065), (9, 2062280), (10, 1856052), (11, 1687320), (12, 1546710), (15, 1237368), (18, 1031140), (20, 928026), (22, 843660), (24, 773355), (30, 618684), (33, 562440), (36, 515570), (40, 464013), (43, 431640), (44, 421830), (45, 412456), (55, 337464), (60, 309342), (66, 281220), (72, 257785), (86, 215820), (88, 210915), (90, 206228), (99, 187480), (109, 170280), (110, 168732), (120, 154671), (129, 143880), (132, 140610), (165, 112488), (172, 107910), (180, 103114), (198, 93740), (215, 86328), (218, 85140), (220, 84366), (258, 71940), (264, 70305), (327, 56760), (330, 56244), (344, 53955), (360, 51557), (387, 47960), (396, 46870), (430, 43164), (436, 42570), (440, 42183), (473, 39240), (495, 37496), (516, 35970), (545, 34056), (645, 28776), (654, 28380), (660, 28122), (774, 23980), (792, 23435), (860, 21582), (872, 21285), (946, 19620), (981, 18920), (990, 18748), (1032, 17985), (1090, 17028), (1199, 15480), (1290, 14388), (1308, 14190), (1320, 14061), (1419, 13080), (1548, 11990), (1635, 11352), (1720, 10791), (1892, 9810), (1935, 9592), (1962, 9460), (1980, 9374), (2180, 8514), (2365, 7848), (2398, 7740), (2580, 7194), (2616, 7095), (2838, 6540), (3096, 5995), (3270, 5676), (3597, 5160), (3784, 4905), (3870, 4796), (3924, 4730), (3960, 4687), (4257, 4360)]