18530820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1$

素因数の和:231

約数の個数: 216

約数和(自身を含む): 71705088

約数和(自身を除く): 53174268

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 49, 55, 60, 63, 66, 70, 77, 84, 90, 98, 99, 105, 110, 126, 132, 140, 147, 154, 165, 180, 191, 196, 198, 210, 220, 231, 245, 252, 294, 308, 315, 330, 382, 385, 396, 420, 441, 462, 490, 495, 539, 573, 588, 630, 660, 693, 735, 764, 770, 882, 924, 955, 980, 990, 1078, 1146, 1155, 1260, 1337, 1386, 1470, 1540, 1617, 1719, 1764, 1910, 1980, 2101, 2156, 2205, 2292, 2310, 2674, 2695, 2772, 2865, 2940, 3234, 3438, 3465, 3820, 4011, 4202, 4410, 4620, 4851, 5348, 5390, 5730, 6303, 6468, 6685, 6876, 6930, 8022, 8085, 8404, 8595, 8820, 9359, 9702, 10505, 10780, 11460, 12033, 12606, 13370, 13860, 14707, 16044, 16170, 17190, 18718, 18909, 19404, 20055, 21010, 24066, 24255, 25212, 26740, 28077, 29414, 31515, 32340, 34380, 37436, 37818, 40110, 42020, 44121, 46795, 48132, 48510, 56154, 58828, 60165, 63030, 73535, 75636, 80220, 84231, 88242, 93590, 94545, 97020, 102949, 112308, 120330, 126060, 132363, 140385, 147070, 168462, 176484, 187180, 189090, 205898, 220605, 240660, 264726, 280770, 294140, 308847, 336924, 378180, 411796, 421155, 441210, 514745, 529452, 561540, 617694, 661815, 842310, 882420, 926541, 1029490, 1235388, 1323630, 1544235, 1684620, 1853082, 2058980, 2647260, 3088470, 3706164, 4632705, 6176940, 9265410, 18530820]

約数ペア:

[(1, 18530820), (2, 9265410), (3, 6176940), (4, 4632705), (5, 3706164), (6, 3088470), (7, 2647260), (9, 2058980), (10, 1853082), (11, 1684620), (12, 1544235), (14, 1323630), (15, 1235388), (18, 1029490), (20, 926541), (21, 882420), (22, 842310), (28, 661815), (30, 617694), (33, 561540), (35, 529452), (36, 514745), (42, 441210), (44, 421155), (45, 411796), (49, 378180), (55, 336924), (60, 308847), (63, 294140), (66, 280770), (70, 264726), (77, 240660), (84, 220605), (90, 205898), (98, 189090), (99, 187180), (105, 176484), (110, 168462), (126, 147070), (132, 140385), (140, 132363), (147, 126060), (154, 120330), (165, 112308), (180, 102949), (191, 97020), (196, 94545), (198, 93590), (210, 88242), (220, 84231), (231, 80220), (245, 75636), (252, 73535), (294, 63030), (308, 60165), (315, 58828), (330, 56154), (382, 48510), (385, 48132), (396, 46795), (420, 44121), (441, 42020), (462, 40110), (490, 37818), (495, 37436), (539, 34380), (573, 32340), (588, 31515), (630, 29414), (660, 28077), (693, 26740), (735, 25212), (764, 24255), (770, 24066), (882, 21010), (924, 20055), (955, 19404), (980, 18909), (990, 18718), (1078, 17190), (1146, 16170), (1155, 16044), (1260, 14707), (1337, 13860), (1386, 13370), (1470, 12606), (1540, 12033), (1617, 11460), (1719, 10780), (1764, 10505), (1910, 9702), (1980, 9359), (2101, 8820), (2156, 8595), (2205, 8404), (2292, 8085), (2310, 8022), (2674, 6930), (2695, 6876), (2772, 6685), (2865, 6468), (2940, 6303), (3234, 5730), (3438, 5390), (3465, 5348), (3820, 4851), (4011, 4620), (4202, 4410)]