81154320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2$

素因数の和:122

約数の個数: 240

約数和(自身を含む): 293106240

約数和(自身を除く): 211951920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 19, 20, 24, 26, 30, 37, 38, 39, 40, 48, 52, 57, 60, 65, 74, 76, 78, 80, 95, 104, 111, 114, 120, 130, 148, 152, 156, 185, 190, 195, 208, 222, 228, 240, 247, 260, 285, 296, 304, 312, 370, 380, 390, 444, 456, 481, 494, 520, 555, 570, 592, 624, 703, 740, 741, 760, 780, 888, 912, 962, 988, 1040, 1110, 1140, 1235, 1369, 1406, 1443, 1480, 1482, 1520, 1560, 1776, 1924, 1976, 2109, 2220, 2280, 2405, 2470, 2738, 2812, 2886, 2960, 2964, 3120, 3515, 3705, 3848, 3952, 4107, 4218, 4440, 4560, 4810, 4940, 5476, 5624, 5772, 5928, 6845, 7030, 7215, 7410, 7696, 8214, 8436, 8880, 9139, 9620, 9880, 10545, 10952, 11248, 11544, 11856, 13690, 14060, 14430, 14820, 16428, 16872, 17797, 18278, 19240, 19760, 20535, 21090, 21904, 23088, 26011, 27380, 27417, 28120, 28860, 29640, 32856, 33744, 35594, 36556, 38480, 41070, 42180, 45695, 52022, 53391, 54760, 54834, 56240, 57720, 59280, 65712, 71188, 73112, 78033, 82140, 84360, 88985, 91390, 104044, 106782, 109520, 109668, 115440, 130055, 137085, 142376, 146224, 156066, 164280, 168720, 177970, 182780, 208088, 213564, 219336, 260110, 266955, 274170, 284752, 312132, 328560, 338143, 355940, 365560, 390165, 416176, 427128, 438672, 520220, 533910, 548340, 624264, 676286, 711880, 731120, 780330, 854256, 1014429, 1040440, 1067820, 1096680, 1248528, 1352572, 1423760, 1560660, 1690715, 2028858, 2080880, 2135640, 2193360, 2705144, 3121320, 3381430, 4057716, 4271280, 5072145, 5410288, 6242640, 6762860, 8115432, 10144290, 13525720, 16230864, 20288580, 27051440, 40577160, 81154320]

約数ペア:

[(1, 81154320), (2, 40577160), (3, 27051440), (4, 20288580), (5, 16230864), (6, 13525720), (8, 10144290), (10, 8115432), (12, 6762860), (13, 6242640), (15, 5410288), (16, 5072145), (19, 4271280), (20, 4057716), (24, 3381430), (26, 3121320), (30, 2705144), (37, 2193360), (38, 2135640), (39, 2080880), (40, 2028858), (48, 1690715), (52, 1560660), (57, 1423760), (60, 1352572), (65, 1248528), (74, 1096680), (76, 1067820), (78, 1040440), (80, 1014429), (95, 854256), (104, 780330), (111, 731120), (114, 711880), (120, 676286), (130, 624264), (148, 548340), (152, 533910), (156, 520220), (185, 438672), (190, 427128), (195, 416176), (208, 390165), (222, 365560), (228, 355940), (240, 338143), (247, 328560), (260, 312132), (285, 284752), (296, 274170), (304, 266955), (312, 260110), (370, 219336), (380, 213564), (390, 208088), (444, 182780), (456, 177970), (481, 168720), (494, 164280), (520, 156066), (555, 146224), (570, 142376), (592, 137085), (624, 130055), (703, 115440), (740, 109668), (741, 109520), (760, 106782), (780, 104044), (888, 91390), (912, 88985), (962, 84360), (988, 82140), (1040, 78033), (1110, 73112), (1140, 71188), (1235, 65712), (1369, 59280), (1406, 57720), (1443, 56240), (1480, 54834), (1482, 54760), (1520, 53391), (1560, 52022), (1776, 45695), (1924, 42180), (1976, 41070), (2109, 38480), (2220, 36556), (2280, 35594), (2405, 33744), (2470, 32856), (2738, 29640), (2812, 28860), (2886, 28120), (2960, 27417), (2964, 27380), (3120, 26011), (3515, 23088), (3705, 21904), (3848, 21090), (3952, 20535), (4107, 19760), (4218, 19240), (4440, 18278), (4560, 17797), (4810, 16872), (4940, 16428), (5476, 14820), (5624, 14430), (5772, 14060), (5928, 13690), (6845, 11856), (7030, 11544), (7215, 11248), (7410, 10952), (7696, 10545), (8214, 9880), (8436, 9620), (8880, 9139)]