81044040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{179}}^1$

素因数の和:225

約数の個数: 256

約数和(自身を含む): 311040000

約数和(自身を除く): 229995960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 49, 55, 56, 60, 66, 70, 77, 84, 88, 98, 105, 110, 120, 132, 140, 147, 154, 165, 168, 179, 196, 210, 220, 231, 245, 264, 280, 294, 308, 330, 343, 358, 385, 392, 420, 440, 462, 490, 537, 539, 588, 616, 660, 686, 716, 735, 770, 840, 895, 924, 980, 1029, 1074, 1078, 1155, 1176, 1253, 1320, 1372, 1432, 1470, 1540, 1617, 1715, 1790, 1848, 1960, 1969, 2058, 2148, 2156, 2310, 2506, 2685, 2695, 2744, 2940, 3080, 3234, 3430, 3580, 3759, 3773, 3938, 4116, 4296, 4312, 4620, 5012, 5145, 5370, 5390, 5880, 5907, 6265, 6468, 6860, 7160, 7518, 7546, 7876, 8085, 8232, 8771, 9240, 9845, 10024, 10290, 10740, 10780, 11319, 11814, 12530, 12936, 13720, 13783, 15036, 15092, 15752, 16170, 17542, 18795, 18865, 19690, 20580, 21480, 21560, 22638, 23628, 25060, 26313, 27566, 29535, 30072, 30184, 32340, 35084, 37590, 37730, 39380, 41160, 41349, 43855, 45276, 47256, 50120, 52626, 55132, 56595, 59070, 61397, 64680, 68915, 70168, 75180, 75460, 78760, 82698, 87710, 90552, 96481, 105252, 110264, 113190, 118140, 122794, 131565, 137830, 150360, 150920, 165396, 175420, 184191, 192962, 206745, 210504, 226380, 236280, 245588, 263130, 275660, 289443, 306985, 330792, 350840, 368382, 385924, 413490, 452760, 482405, 491176, 526260, 551320, 578886, 613970, 675367, 736764, 771848, 826980, 920955, 964810, 1052520, 1157772, 1227940, 1350734, 1447215, 1473528, 1653960, 1841910, 1929620, 2026101, 2315544, 2455880, 2701468, 2894430, 3376835, 3683820, 3859240, 4052202, 5402936, 5788860, 6753670, 7367640, 8104404, 10130505, 11577720, 13507340, 16208808, 20261010, 27014680, 40522020, 81044040]

約数ペア:

[(1, 81044040), (2, 40522020), (3, 27014680), (4, 20261010), (5, 16208808), (6, 13507340), (7, 11577720), (8, 10130505), (10, 8104404), (11, 7367640), (12, 6753670), (14, 5788860), (15, 5402936), (20, 4052202), (21, 3859240), (22, 3683820), (24, 3376835), (28, 2894430), (30, 2701468), (33, 2455880), (35, 2315544), (40, 2026101), (42, 1929620), (44, 1841910), (49, 1653960), (55, 1473528), (56, 1447215), (60, 1350734), (66, 1227940), (70, 1157772), (77, 1052520), (84, 964810), (88, 920955), (98, 826980), (105, 771848), (110, 736764), (120, 675367), (132, 613970), (140, 578886), (147, 551320), (154, 526260), (165, 491176), (168, 482405), (179, 452760), (196, 413490), (210, 385924), (220, 368382), (231, 350840), (245, 330792), (264, 306985), (280, 289443), (294, 275660), (308, 263130), (330, 245588), (343, 236280), (358, 226380), (385, 210504), (392, 206745), (420, 192962), (440, 184191), (462, 175420), (490, 165396), (537, 150920), (539, 150360), (588, 137830), (616, 131565), (660, 122794), (686, 118140), (716, 113190), (735, 110264), (770, 105252), (840, 96481), (895, 90552), (924, 87710), (980, 82698), (1029, 78760), (1074, 75460), (1078, 75180), (1155, 70168), (1176, 68915), (1253, 64680), (1320, 61397), (1372, 59070), (1432, 56595), (1470, 55132), (1540, 52626), (1617, 50120), (1715, 47256), (1790, 45276), (1848, 43855), (1960, 41349), (1969, 41160), (2058, 39380), (2148, 37730), (2156, 37590), (2310, 35084), (2506, 32340), (2685, 30184), (2695, 30072), (2744, 29535), (2940, 27566), (3080, 26313), (3234, 25060), (3430, 23628), (3580, 22638), (3759, 21560), (3773, 21480), (3938, 20580), (4116, 19690), (4296, 18865), (4312, 18795), (4620, 17542), (5012, 16170), (5145, 15752), (5370, 15092), (5390, 15036), (5880, 13783), (5907, 13720), (6265, 12936), (6468, 12530), (6860, 11814), (7160, 11319), (7518, 10780), (7546, 10740), (7876, 10290), (8085, 10024), (8232, 9845), (8771, 9240)]