81828720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{3919}}^1$

素因数の和:3967

約数の個数: 120

約数和(自身を含む): 284356800

約数和(自身を除く): 202528080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 116, 120, 144, 145, 174, 180, 232, 240, 261, 290, 348, 360, 435, 464, 522, 580, 696, 720, 870, 1044, 1160, 1305, 1392, 1740, 2088, 2320, 2610, 3480, 3919, 4176, 5220, 6960, 7838, 10440, 11757, 15676, 19595, 20880, 23514, 31352, 35271, 39190, 47028, 58785, 62704, 70542, 78380, 94056, 113651, 117570, 141084, 156760, 176355, 188112, 227302, 235140, 282168, 313520, 340953, 352710, 454604, 470280, 564336, 568255, 681906, 705420, 909208, 940560, 1022859, 1136510, 1363812, 1410840, 1704765, 1818416, 2045718, 2273020, 2727624, 2821680, 3409530, 4091436, 4546040, 5114295, 5455248, 6819060, 8182872, 9092080, 10228590, 13638120, 16365744, 20457180, 27276240, 40914360, 81828720]

約数ペア:

[(1, 81828720), (2, 40914360), (3, 27276240), (4, 20457180), (5, 16365744), (6, 13638120), (8, 10228590), (9, 9092080), (10, 8182872), (12, 6819060), (15, 5455248), (16, 5114295), (18, 4546040), (20, 4091436), (24, 3409530), (29, 2821680), (30, 2727624), (36, 2273020), (40, 2045718), (45, 1818416), (48, 1704765), (58, 1410840), (60, 1363812), (72, 1136510), (80, 1022859), (87, 940560), (90, 909208), (116, 705420), (120, 681906), (144, 568255), (145, 564336), (174, 470280), (180, 454604), (232, 352710), (240, 340953), (261, 313520), (290, 282168), (348, 235140), (360, 227302), (435, 188112), (464, 176355), (522, 156760), (580, 141084), (696, 117570), (720, 113651), (870, 94056), (1044, 78380), (1160, 70542), (1305, 62704), (1392, 58785), (1740, 47028), (2088, 39190), (2320, 35271), (2610, 31352), (3480, 23514), (3919, 20880), (4176, 19595), (5220, 15676), (6960, 11757), (7838, 10440)]