1561571680

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:277

約数の個数: 192

約数和(自身を含む): 4000776192

約数和(自身を除く): 2439204512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 67, 74, 80, 124, 127, 134, 148, 155, 160, 185, 248, 254, 268, 296, 310, 335, 370, 496, 508, 536, 592, 620, 635, 670, 740, 992, 1016, 1072, 1147, 1184, 1240, 1270, 1340, 1480, 2032, 2077, 2144, 2294, 2479, 2480, 2540, 2680, 2960, 3937, 4064, 4154, 4588, 4699, 4958, 4960, 5080, 5360, 5735, 5920, 7874, 8308, 8509, 9176, 9398, 9916, 10160, 10385, 10720, 11470, 12395, 15748, 16616, 17018, 18352, 18796, 19685, 19832, 20320, 20770, 22940, 23495, 24790, 31496, 33232, 34036, 36704, 37592, 39370, 39664, 41540, 42545, 45880, 46990, 49580, 62992, 66464, 68072, 75184, 76849, 78740, 79328, 83080, 85090, 91760, 93980, 99160, 125984, 136144, 145669, 150368, 153698, 157480, 166160, 170180, 183520, 187960, 198320, 263779, 272288, 291338, 307396, 314833, 314960, 332320, 340360, 375920, 384245, 396640, 527558, 582676, 614792, 629666, 629920, 680720, 728345, 751840, 768490, 1055116, 1165352, 1229584, 1259332, 1318895, 1361440, 1456690, 1536980, 1574165, 2110232, 2330704, 2459168, 2518664, 2637790, 2913380, 3073960, 3148330, 4220464, 4661408, 5037328, 5275580, 5826760, 6147920, 6296660, 8440928, 9759823, 10074656, 10551160, 11653520, 12295840, 12593320, 19519646, 21102320, 23307040, 25186640, 39039292, 42204640, 48799115, 50373280, 78078584, 97598230, 156157168, 195196460, 312314336, 390392920, 780785840, 1561571680]

約数ペア:

[(1, 1561571680), (2, 780785840), (4, 390392920), (5, 312314336), (8, 195196460), (10, 156157168), (16, 97598230), (20, 78078584), (31, 50373280), (32, 48799115), (37, 42204640), (40, 39039292), (62, 25186640), (67, 23307040), (74, 21102320), (80, 19519646), (124, 12593320), (127, 12295840), (134, 11653520), (148, 10551160), (155, 10074656), (160, 9759823), (185, 8440928), (248, 6296660), (254, 6147920), (268, 5826760), (296, 5275580), (310, 5037328), (335, 4661408), (370, 4220464), (496, 3148330), (508, 3073960), (536, 2913380), (592, 2637790), (620, 2518664), (635, 2459168), (670, 2330704), (740, 2110232), (992, 1574165), (1016, 1536980), (1072, 1456690), (1147, 1361440), (1184, 1318895), (1240, 1259332), (1270, 1229584), (1340, 1165352), (1480, 1055116), (2032, 768490), (2077, 751840), (2144, 728345), (2294, 680720), (2479, 629920), (2480, 629666), (2540, 614792), (2680, 582676), (2960, 527558), (3937, 396640), (4064, 384245), (4154, 375920), (4588, 340360), (4699, 332320), (4958, 314960), (4960, 314833), (5080, 307396), (5360, 291338), (5735, 272288), (5920, 263779), (7874, 198320), (8308, 187960), (8509, 183520), (9176, 170180), (9398, 166160), (9916, 157480), (10160, 153698), (10385, 150368), (10720, 145669), (11470, 136144), (12395, 125984), (15748, 99160), (16616, 93980), (17018, 91760), (18352, 85090), (18796, 83080), (19685, 79328), (19832, 78740), (20320, 76849), (20770, 75184), (22940, 68072), (23495, 66464), (24790, 62992), (31496, 49580), (33232, 46990), (34036, 45880), (36704, 42545), (37592, 41540), (39370, 39664)]