81011520

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1223}}^1$

素因数の和:1269

約数の個数: 168

約数和(自身を含む): 290998656

約数和(自身を除く): 209987136

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 64, 69, 72, 80, 90, 92, 96, 115, 120, 138, 144, 160, 180, 184, 192, 207, 230, 240, 276, 288, 320, 345, 360, 368, 414, 460, 480, 552, 576, 690, 720, 736, 828, 920, 960, 1035, 1104, 1223, 1380, 1440, 1472, 1656, 1840, 2070, 2208, 2446, 2760, 2880, 3312, 3669, 3680, 4140, 4416, 4892, 5520, 6115, 6624, 7338, 7360, 8280, 9784, 11007, 11040, 12230, 13248, 14676, 16560, 18345, 19568, 22014, 22080, 24460, 28129, 29352, 33120, 36690, 39136, 44028, 48920, 55035, 56258, 58704, 66240, 73380, 78272, 84387, 88056, 97840, 110070, 112516, 117408, 140645, 146760, 168774, 176112, 195680, 220140, 225032, 234816, 253161, 281290, 293520, 337548, 352224, 391360, 421935, 440280, 450064, 506322, 562580, 587040, 675096, 704448, 843870, 880560, 900128, 1012644, 1125160, 1174080, 1265805, 1350192, 1687740, 1761120, 1800256, 2025288, 2250320, 2531610, 2700384, 3375480, 3522240, 4050576, 4500640, 5063220, 5400768, 6750960, 8101152, 9001280, 10126440, 13501920, 16202304, 20252880, 27003840, 40505760, 81011520]

約数ペア:

[(1, 81011520), (2, 40505760), (3, 27003840), (4, 20252880), (5, 16202304), (6, 13501920), (8, 10126440), (9, 9001280), (10, 8101152), (12, 6750960), (15, 5400768), (16, 5063220), (18, 4500640), (20, 4050576), (23, 3522240), (24, 3375480), (30, 2700384), (32, 2531610), (36, 2250320), (40, 2025288), (45, 1800256), (46, 1761120), (48, 1687740), (60, 1350192), (64, 1265805), (69, 1174080), (72, 1125160), (80, 1012644), (90, 900128), (92, 880560), (96, 843870), (115, 704448), (120, 675096), (138, 587040), (144, 562580), (160, 506322), (180, 450064), (184, 440280), (192, 421935), (207, 391360), (230, 352224), (240, 337548), (276, 293520), (288, 281290), (320, 253161), (345, 234816), (360, 225032), (368, 220140), (414, 195680), (460, 176112), (480, 168774), (552, 146760), (576, 140645), (690, 117408), (720, 112516), (736, 110070), (828, 97840), (920, 88056), (960, 84387), (1035, 78272), (1104, 73380), (1223, 66240), (1380, 58704), (1440, 56258), (1472, 55035), (1656, 48920), (1840, 44028), (2070, 39136), (2208, 36690), (2446, 33120), (2760, 29352), (2880, 28129), (3312, 24460), (3669, 22080), (3680, 22014), (4140, 19568), (4416, 18345), (4892, 16560), (5520, 14676), (6115, 13248), (6624, 12230), (7338, 11040), (7360, 11007), (8280, 9784)]