261612720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3907}}^1$

素因数の和:3960

約数の個数: 160

約数和(自身を含む): 930416640

約数和(自身を除く): 668803920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 36, 40, 45, 48, 54, 60, 62, 72, 80, 90, 93, 108, 120, 124, 135, 144, 155, 180, 186, 216, 240, 248, 270, 279, 310, 360, 372, 432, 465, 496, 540, 558, 620, 720, 744, 837, 930, 1080, 1116, 1240, 1395, 1488, 1674, 1860, 2160, 2232, 2480, 2790, 3348, 3720, 3907, 4185, 4464, 5580, 6696, 7440, 7814, 8370, 11160, 11721, 13392, 15628, 16740, 19535, 22320, 23442, 31256, 33480, 35163, 39070, 46884, 58605, 62512, 66960, 70326, 78140, 93768, 105489, 117210, 121117, 140652, 156280, 175815, 187536, 210978, 234420, 242234, 281304, 312560, 351630, 363351, 421956, 468840, 484468, 527445, 562608, 605585, 703260, 726702, 843912, 937680, 968936, 1054890, 1090053, 1211170, 1406520, 1453404, 1687824, 1816755, 1937872, 2109780, 2180106, 2422340, 2813040, 2906808, 3270159, 3633510, 4219560, 4360212, 4844680, 5450265, 5813616, 6540318, 7267020, 8439120, 8720424, 9689360, 10900530, 13080636, 14534040, 16350795, 17440848, 21801060, 26161272, 29068080, 32701590, 43602120, 52322544, 65403180, 87204240, 130806360, 261612720]

約数ペア:

[(1, 261612720), (2, 130806360), (3, 87204240), (4, 65403180), (5, 52322544), (6, 43602120), (8, 32701590), (9, 29068080), (10, 26161272), (12, 21801060), (15, 17440848), (16, 16350795), (18, 14534040), (20, 13080636), (24, 10900530), (27, 9689360), (30, 8720424), (31, 8439120), (36, 7267020), (40, 6540318), (45, 5813616), (48, 5450265), (54, 4844680), (60, 4360212), (62, 4219560), (72, 3633510), (80, 3270159), (90, 2906808), (93, 2813040), (108, 2422340), (120, 2180106), (124, 2109780), (135, 1937872), (144, 1816755), (155, 1687824), (180, 1453404), (186, 1406520), (216, 1211170), (240, 1090053), (248, 1054890), (270, 968936), (279, 937680), (310, 843912), (360, 726702), (372, 703260), (432, 605585), (465, 562608), (496, 527445), (540, 484468), (558, 468840), (620, 421956), (720, 363351), (744, 351630), (837, 312560), (930, 281304), (1080, 242234), (1116, 234420), (1240, 210978), (1395, 187536), (1488, 175815), (1674, 156280), (1860, 140652), (2160, 121117), (2232, 117210), (2480, 105489), (2790, 93768), (3348, 78140), (3720, 70326), (3907, 66960), (4185, 62512), (4464, 58605), (5580, 46884), (6696, 39070), (7440, 35163), (7814, 33480), (8370, 31256), (11160, 23442), (11721, 22320), (13392, 19535), (15628, 16740)]