81857160

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2953}}^1$

素因数の和:2988

約数の個数: 192

約数和(自身を含む): 331793280

約数和(自身を除く): 249936120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 99, 105, 110, 120, 126, 132, 140, 154, 165, 168, 180, 198, 210, 220, 231, 252, 264, 280, 308, 315, 330, 360, 385, 396, 420, 440, 462, 495, 504, 616, 630, 660, 693, 770, 792, 840, 924, 990, 1155, 1260, 1320, 1386, 1540, 1848, 1980, 2310, 2520, 2772, 2953, 3080, 3465, 3960, 4620, 5544, 5906, 6930, 8859, 9240, 11812, 13860, 14765, 17718, 20671, 23624, 26577, 27720, 29530, 32483, 35436, 41342, 44295, 53154, 59060, 62013, 64966, 70872, 82684, 88590, 97449, 103355, 106308, 118120, 124026, 129932, 132885, 162415, 165368, 177180, 186039, 194898, 206710, 212616, 227381, 248052, 259864, 265770, 292347, 310065, 324830, 354360, 372078, 389796, 413420, 454762, 487245, 496104, 531540, 584694, 620130, 649660, 682143, 744156, 779592, 826840, 909524, 930195, 974490, 1063080, 1136905, 1169388, 1240260, 1299320, 1364286, 1461735, 1488312, 1819048, 1860390, 1948980, 2046429, 2273810, 2338776, 2480520, 2728572, 2923470, 3410715, 3720780, 3897960, 4092858, 4547620, 5457144, 5846940, 6821430, 7441560, 8185716, 9095240, 10232145, 11693880, 13642860, 16371432, 20464290, 27285720, 40928580, 81857160]

約数ペア:

[(1, 81857160), (2, 40928580), (3, 27285720), (4, 20464290), (5, 16371432), (6, 13642860), (7, 11693880), (8, 10232145), (9, 9095240), (10, 8185716), (11, 7441560), (12, 6821430), (14, 5846940), (15, 5457144), (18, 4547620), (20, 4092858), (21, 3897960), (22, 3720780), (24, 3410715), (28, 2923470), (30, 2728572), (33, 2480520), (35, 2338776), (36, 2273810), (40, 2046429), (42, 1948980), (44, 1860390), (45, 1819048), (55, 1488312), (56, 1461735), (60, 1364286), (63, 1299320), (66, 1240260), (70, 1169388), (72, 1136905), (77, 1063080), (84, 974490), (88, 930195), (90, 909524), (99, 826840), (105, 779592), (110, 744156), (120, 682143), (126, 649660), (132, 620130), (140, 584694), (154, 531540), (165, 496104), (168, 487245), (180, 454762), (198, 413420), (210, 389796), (220, 372078), (231, 354360), (252, 324830), (264, 310065), (280, 292347), (308, 265770), (315, 259864), (330, 248052), (360, 227381), (385, 212616), (396, 206710), (420, 194898), (440, 186039), (462, 177180), (495, 165368), (504, 162415), (616, 132885), (630, 129932), (660, 124026), (693, 118120), (770, 106308), (792, 103355), (840, 97449), (924, 88590), (990, 82684), (1155, 70872), (1260, 64966), (1320, 62013), (1386, 59060), (1540, 53154), (1848, 44295), (1980, 41342), (2310, 35436), (2520, 32483), (2772, 29530), (2953, 27720), (3080, 26577), (3465, 23624), (3960, 20671), (4620, 17718), (5544, 14765), (5906, 13860), (6930, 11812), (8859, 9240)]