18475380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:107

約数の個数: 288

約数和(自身を含む): 73801728

約数和(自身を除く): 55326348

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 31, 33, 35, 36, 42, 43, 44, 45, 55, 60, 62, 63, 66, 70, 77, 84, 86, 90, 93, 99, 105, 110, 124, 126, 129, 132, 140, 154, 155, 165, 172, 180, 186, 198, 210, 215, 217, 220, 231, 252, 258, 279, 301, 308, 310, 315, 330, 341, 372, 385, 387, 396, 420, 430, 434, 462, 465, 473, 495, 516, 558, 602, 620, 630, 645, 651, 660, 682, 693, 770, 774, 860, 868, 903, 924, 930, 946, 990, 1023, 1085, 1116, 1155, 1204, 1260, 1290, 1302, 1333, 1364, 1386, 1395, 1419, 1505, 1540, 1548, 1705, 1806, 1860, 1892, 1935, 1953, 1980, 2046, 2170, 2310, 2365, 2387, 2580, 2604, 2666, 2709, 2772, 2790, 2838, 3010, 3069, 3255, 3311, 3410, 3465, 3612, 3870, 3906, 3999, 4092, 4257, 4340, 4515, 4620, 4730, 4774, 5115, 5332, 5418, 5580, 5676, 6020, 6138, 6510, 6622, 6665, 6820, 6930, 7095, 7161, 7740, 7812, 7998, 8514, 9030, 9331, 9460, 9548, 9765, 9933, 10230, 10836, 11935, 11997, 12276, 13020, 13244, 13330, 13545, 13860, 14190, 14322, 14663, 15345, 15996, 16555, 17028, 18060, 18662, 19530, 19866, 19995, 20460, 21285, 21483, 23870, 23994, 26660, 27090, 27993, 28380, 28644, 29326, 29799, 30690, 33110, 35805, 37324, 39060, 39732, 39990, 42570, 42966, 43989, 46655, 47740, 47988, 49665, 54180, 55986, 58652, 59598, 59985, 61380, 66220, 71610, 73315, 79980, 83979, 85140, 85932, 87978, 93310, 99330, 102641, 107415, 111972, 119196, 119970, 131967, 139965, 143220, 146630, 148995, 167958, 175956, 186620, 198660, 205282, 214830, 219945, 239940, 263934, 279930, 293260, 297990, 307923, 335916, 410564, 419895, 429660, 439890, 513205, 527868, 559860, 595980, 615846, 659835, 839790, 879780, 923769, 1026410, 1231692, 1319670, 1539615, 1679580, 1847538, 2052820, 2639340, 3079230, 3695076, 4618845, 6158460, 9237690, 18475380]

約数ペア:

[(1, 18475380), (2, 9237690), (3, 6158460), (4, 4618845), (5, 3695076), (6, 3079230), (7, 2639340), (9, 2052820), (10, 1847538), (11, 1679580), (12, 1539615), (14, 1319670), (15, 1231692), (18, 1026410), (20, 923769), (21, 879780), (22, 839790), (28, 659835), (30, 615846), (31, 595980), (33, 559860), (35, 527868), (36, 513205), (42, 439890), (43, 429660), (44, 419895), (45, 410564), (55, 335916), (60, 307923), (62, 297990), (63, 293260), (66, 279930), (70, 263934), (77, 239940), (84, 219945), (86, 214830), (90, 205282), (93, 198660), (99, 186620), (105, 175956), (110, 167958), (124, 148995), (126, 146630), (129, 143220), (132, 139965), (140, 131967), (154, 119970), (155, 119196), (165, 111972), (172, 107415), (180, 102641), (186, 99330), (198, 93310), (210, 87978), (215, 85932), (217, 85140), (220, 83979), (231, 79980), (252, 73315), (258, 71610), (279, 66220), (301, 61380), (308, 59985), (310, 59598), (315, 58652), (330, 55986), (341, 54180), (372, 49665), (385, 47988), (387, 47740), (396, 46655), (420, 43989), (430, 42966), (434, 42570), (462, 39990), (465, 39732), (473, 39060), (495, 37324), (516, 35805), (558, 33110), (602, 30690), (620, 29799), (630, 29326), (645, 28644), (651, 28380), (660, 27993), (682, 27090), (693, 26660), (770, 23994), (774, 23870), (860, 21483), (868, 21285), (903, 20460), (924, 19995), (930, 19866), (946, 19530), (990, 18662), (1023, 18060), (1085, 17028), (1116, 16555), (1155, 15996), (1204, 15345), (1260, 14663), (1290, 14322), (1302, 14190), (1333, 13860), (1364, 13545), (1386, 13330), (1395, 13244), (1419, 13020), (1505, 12276), (1540, 11997), (1548, 11935), (1705, 10836), (1806, 10230), (1860, 9933), (1892, 9765), (1935, 9548), (1953, 9460), (1980, 9331), (2046, 9030), (2170, 8514), (2310, 7998), (2365, 7812), (2387, 7740), (2580, 7161), (2604, 7095), (2666, 6930), (2709, 6820), (2772, 6665), (2790, 6622), (2838, 6510), (3010, 6138), (3069, 6020), (3255, 5676), (3311, 5580), (3410, 5418), (3465, 5332), (3612, 5115), (3870, 4774), (3906, 4730), (3999, 4620), (4092, 4515), (4257, 4340)]