81336960

素因数分解:

$2^7\times 3^5\times 5^1\times {\mathrm{523}}^1$

素因数の和:557

約数の個数: 192

約数和(自身を含む): 291826080

約数和(自身を除く): 210489120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 523, 540, 576, 640, 648, 720, 810, 864, 960, 972, 1046, 1080, 1152, 1215, 1296, 1440, 1569, 1620, 1728, 1920, 1944, 2092, 2160, 2430, 2592, 2615, 2880, 3138, 3240, 3456, 3888, 4184, 4320, 4707, 4860, 5184, 5230, 5760, 6276, 6480, 7776, 7845, 8368, 8640, 9414, 9720, 10368, 10460, 12552, 12960, 14121, 15552, 15690, 16736, 17280, 18828, 19440, 20920, 23535, 25104, 25920, 28242, 31104, 31380, 33472, 37656, 38880, 41840, 42363, 47070, 50208, 51840, 56484, 62760, 66944, 70605, 75312, 77760, 83680, 84726, 94140, 100416, 112968, 125520, 127089, 141210, 150624, 155520, 167360, 169452, 188280, 200832, 211815, 225936, 251040, 254178, 282420, 301248, 334720, 338904, 376560, 423630, 451872, 502080, 508356, 564840, 602496, 635445, 677808, 753120, 847260, 903744, 1004160, 1016712, 1129680, 1270890, 1355616, 1506240, 1694520, 1807488, 2033424, 2259360, 2541780, 2711232, 3012480, 3389040, 4066848, 4518720, 5083560, 5422464, 6778080, 8133696, 9037440, 10167120, 13556160, 16267392, 20334240, 27112320, 40668480, 81336960]

約数ペア:

[(1, 81336960), (2, 40668480), (3, 27112320), (4, 20334240), (5, 16267392), (6, 13556160), (8, 10167120), (9, 9037440), (10, 8133696), (12, 6778080), (15, 5422464), (16, 5083560), (18, 4518720), (20, 4066848), (24, 3389040), (27, 3012480), (30, 2711232), (32, 2541780), (36, 2259360), (40, 2033424), (45, 1807488), (48, 1694520), (54, 1506240), (60, 1355616), (64, 1270890), (72, 1129680), (80, 1016712), (81, 1004160), (90, 903744), (96, 847260), (108, 753120), (120, 677808), (128, 635445), (135, 602496), (144, 564840), (160, 508356), (162, 502080), (180, 451872), (192, 423630), (216, 376560), (240, 338904), (243, 334720), (270, 301248), (288, 282420), (320, 254178), (324, 251040), (360, 225936), (384, 211815), (405, 200832), (432, 188280), (480, 169452), (486, 167360), (523, 155520), (540, 150624), (576, 141210), (640, 127089), (648, 125520), (720, 112968), (810, 100416), (864, 94140), (960, 84726), (972, 83680), (1046, 77760), (1080, 75312), (1152, 70605), (1215, 66944), (1296, 62760), (1440, 56484), (1569, 51840), (1620, 50208), (1728, 47070), (1920, 42363), (1944, 41840), (2092, 38880), (2160, 37656), (2430, 33472), (2592, 31380), (2615, 31104), (2880, 28242), (3138, 25920), (3240, 25104), (3456, 23535), (3888, 20920), (4184, 19440), (4320, 18828), (4707, 17280), (4860, 16736), (5184, 15690), (5230, 15552), (5760, 14121), (6276, 12960), (6480, 12552), (7776, 10460), (7845, 10368), (8368, 9720), (8640, 9414)]