81888840

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:205

約数の個数: 256

約数和(自身を含む): 305337600

約数和(自身を除く): 223448760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 61, 66, 72, 88, 90, 99, 108, 110, 113, 120, 122, 132, 135, 165, 180, 183, 198, 216, 220, 226, 244, 264, 270, 297, 305, 330, 339, 360, 366, 396, 440, 452, 488, 495, 540, 549, 565, 594, 610, 660, 671, 678, 732, 792, 904, 915, 990, 1017, 1080, 1098, 1130, 1188, 1220, 1243, 1320, 1342, 1356, 1464, 1485, 1647, 1695, 1830, 1980, 2013, 2034, 2196, 2260, 2376, 2440, 2486, 2684, 2712, 2745, 2970, 3051, 3294, 3355, 3390, 3660, 3729, 3960, 4026, 4068, 4392, 4520, 4972, 5085, 5368, 5490, 5940, 6039, 6102, 6215, 6588, 6710, 6780, 6893, 7320, 7458, 8052, 8136, 8235, 9944, 10065, 10170, 10980, 11187, 11880, 12078, 12204, 12430, 13176, 13420, 13560, 13786, 14916, 15255, 16104, 16470, 18117, 18645, 20130, 20340, 20679, 21960, 22374, 24156, 24408, 24860, 26840, 27572, 29832, 30195, 30510, 32940, 33561, 34465, 36234, 37290, 40260, 40680, 41358, 44748, 48312, 49720, 55144, 55935, 60390, 61020, 62037, 65880, 67122, 68930, 72468, 74580, 75823, 80520, 82716, 89496, 90585, 103395, 111870, 120780, 122040, 124074, 134244, 137860, 144936, 149160, 151646, 165432, 167805, 181170, 186111, 206790, 223740, 227469, 241560, 248148, 268488, 275720, 303292, 310185, 335610, 362340, 372222, 379115, 413580, 447480, 454938, 496296, 606584, 620370, 671220, 682407, 724680, 744444, 758230, 827160, 909876, 930555, 1137345, 1240740, 1342440, 1364814, 1488888, 1516460, 1819752, 1861110, 2047221, 2274690, 2481480, 2729628, 3032920, 3412035, 3722220, 4094442, 4549380, 5459256, 6824070, 7444440, 8188884, 9098760, 10236105, 13648140, 16377768, 20472210, 27296280, 40944420, 81888840]

約数ペア:

[(1, 81888840), (2, 40944420), (3, 27296280), (4, 20472210), (5, 16377768), (6, 13648140), (8, 10236105), (9, 9098760), (10, 8188884), (11, 7444440), (12, 6824070), (15, 5459256), (18, 4549380), (20, 4094442), (22, 3722220), (24, 3412035), (27, 3032920), (30, 2729628), (33, 2481480), (36, 2274690), (40, 2047221), (44, 1861110), (45, 1819752), (54, 1516460), (55, 1488888), (60, 1364814), (61, 1342440), (66, 1240740), (72, 1137345), (88, 930555), (90, 909876), (99, 827160), (108, 758230), (110, 744444), (113, 724680), (120, 682407), (122, 671220), (132, 620370), (135, 606584), (165, 496296), (180, 454938), (183, 447480), (198, 413580), (216, 379115), (220, 372222), (226, 362340), (244, 335610), (264, 310185), (270, 303292), (297, 275720), (305, 268488), (330, 248148), (339, 241560), (360, 227469), (366, 223740), (396, 206790), (440, 186111), (452, 181170), (488, 167805), (495, 165432), (540, 151646), (549, 149160), (565, 144936), (594, 137860), (610, 134244), (660, 124074), (671, 122040), (678, 120780), (732, 111870), (792, 103395), (904, 90585), (915, 89496), (990, 82716), (1017, 80520), (1080, 75823), (1098, 74580), (1130, 72468), (1188, 68930), (1220, 67122), (1243, 65880), (1320, 62037), (1342, 61020), (1356, 60390), (1464, 55935), (1485, 55144), (1647, 49720), (1695, 48312), (1830, 44748), (1980, 41358), (2013, 40680), (2034, 40260), (2196, 37290), (2260, 36234), (2376, 34465), (2440, 33561), (2486, 32940), (2684, 30510), (2712, 30195), (2745, 29832), (2970, 27572), (3051, 26840), (3294, 24860), (3355, 24408), (3390, 24156), (3660, 22374), (3729, 21960), (3960, 20679), (4026, 20340), (4068, 20130), (4392, 18645), (4520, 18117), (4972, 16470), (5085, 16104), (5368, 15255), (5490, 14916), (5940, 13786), (6039, 13560), (6102, 13420), (6215, 13176), (6588, 12430), (6710, 12204), (6780, 12078), (6893, 11880), (7320, 11187), (7458, 10980), (8052, 10170), (8136, 10065), (8235, 9944)]