81011840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{107}}^1$

素因数の和:159

約数の個数: 192

約数和(自身を含む): 241911360

約数和(自身を除く): 160899520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 107, 112, 128, 130, 140, 160, 169, 182, 208, 214, 224, 260, 280, 320, 338, 364, 416, 428, 448, 455, 520, 535, 560, 640, 676, 728, 749, 832, 845, 856, 896, 910, 1040, 1070, 1120, 1183, 1352, 1391, 1456, 1498, 1664, 1690, 1712, 1820, 2080, 2140, 2240, 2366, 2704, 2782, 2912, 2996, 3380, 3424, 3640, 3745, 4160, 4280, 4480, 4732, 5408, 5564, 5824, 5915, 5992, 6760, 6848, 6955, 7280, 7490, 8320, 8560, 9464, 9737, 10816, 11128, 11648, 11830, 11984, 13520, 13696, 13910, 14560, 14980, 17120, 18083, 18928, 19474, 21632, 22256, 23660, 23968, 27040, 27820, 29120, 29960, 34240, 36166, 37856, 38948, 44512, 47320, 47936, 48685, 54080, 55640, 58240, 59920, 68480, 72332, 75712, 77896, 89024, 90415, 94640, 95872, 97370, 108160, 111280, 119840, 126581, 144664, 151424, 155792, 178048, 180830, 189280, 194740, 222560, 239680, 253162, 289328, 311584, 361660, 378560, 389480, 445120, 479360, 506324, 578656, 623168, 632905, 723320, 757120, 778960, 890240, 1012648, 1157312, 1246336, 1265810, 1446640, 1557920, 2025296, 2314624, 2531620, 2893280, 3115840, 4050592, 5063240, 5786560, 6231680, 8101184, 10126480, 11573120, 16202368, 20252960, 40505920, 81011840]

約数ペア:

[(1, 81011840), (2, 40505920), (4, 20252960), (5, 16202368), (7, 11573120), (8, 10126480), (10, 8101184), (13, 6231680), (14, 5786560), (16, 5063240), (20, 4050592), (26, 3115840), (28, 2893280), (32, 2531620), (35, 2314624), (40, 2025296), (52, 1557920), (56, 1446640), (64, 1265810), (65, 1246336), (70, 1157312), (80, 1012648), (91, 890240), (104, 778960), (107, 757120), (112, 723320), (128, 632905), (130, 623168), (140, 578656), (160, 506324), (169, 479360), (182, 445120), (208, 389480), (214, 378560), (224, 361660), (260, 311584), (280, 289328), (320, 253162), (338, 239680), (364, 222560), (416, 194740), (428, 189280), (448, 180830), (455, 178048), (520, 155792), (535, 151424), (560, 144664), (640, 126581), (676, 119840), (728, 111280), (749, 108160), (832, 97370), (845, 95872), (856, 94640), (896, 90415), (910, 89024), (1040, 77896), (1070, 75712), (1120, 72332), (1183, 68480), (1352, 59920), (1391, 58240), (1456, 55640), (1498, 54080), (1664, 48685), (1690, 47936), (1712, 47320), (1820, 44512), (2080, 38948), (2140, 37856), (2240, 36166), (2366, 34240), (2704, 29960), (2782, 29120), (2912, 27820), (2996, 27040), (3380, 23968), (3424, 23660), (3640, 22256), (3745, 21632), (4160, 19474), (4280, 18928), (4480, 18083), (4732, 17120), (5408, 14980), (5564, 14560), (5824, 13910), (5915, 13696), (5992, 13520), (6760, 11984), (6848, 11830), (6955, 11648), (7280, 11128), (7490, 10816), (8320, 9737), (8560, 9464)]