20338017920

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{78079}}^1$

素因数の和:78146

約数の個数: 128

約数和(自身を含む): 54474854400

約数和(自身を除く): 34136836480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 37, 40, 44, 55, 64, 74, 80, 88, 110, 128, 148, 160, 176, 185, 220, 296, 320, 352, 370, 407, 440, 592, 640, 704, 740, 814, 880, 1184, 1408, 1480, 1628, 1760, 2035, 2368, 2960, 3256, 3520, 4070, 4736, 5920, 6512, 7040, 8140, 11840, 13024, 16280, 23680, 26048, 32560, 52096, 65120, 78079, 130240, 156158, 260480, 312316, 390395, 624632, 780790, 858869, 1249264, 1561580, 1717738, 2498528, 2888923, 3123160, 3435476, 4294345, 4997056, 5777846, 6246320, 6870952, 8588690, 9994112, 11555692, 12492640, 13741904, 14444615, 17177380, 23111384, 24985280, 27483808, 28889230, 31778153, 34354760, 46222768, 49970560, 54967616, 57778460, 63556306, 68709520, 92445536, 109935232, 115556920, 127112612, 137419040, 158890765, 184891072, 231113840, 254225224, 274838080, 317781530, 369782144, 462227680, 508450448, 549676160, 635563060, 924455360, 1016900896, 1271126120, 1848910720, 2033801792, 2542252240, 4067603584, 5084504480, 10169008960, 20338017920]

約数ペア:

[(1, 20338017920), (2, 10169008960), (4, 5084504480), (5, 4067603584), (8, 2542252240), (10, 2033801792), (11, 1848910720), (16, 1271126120), (20, 1016900896), (22, 924455360), (32, 635563060), (37, 549676160), (40, 508450448), (44, 462227680), (55, 369782144), (64, 317781530), (74, 274838080), (80, 254225224), (88, 231113840), (110, 184891072), (128, 158890765), (148, 137419040), (160, 127112612), (176, 115556920), (185, 109935232), (220, 92445536), (296, 68709520), (320, 63556306), (352, 57778460), (370, 54967616), (407, 49970560), (440, 46222768), (592, 34354760), (640, 31778153), (704, 28889230), (740, 27483808), (814, 24985280), (880, 23111384), (1184, 17177380), (1408, 14444615), (1480, 13741904), (1628, 12492640), (1760, 11555692), (2035, 9994112), (2368, 8588690), (2960, 6870952), (3256, 6246320), (3520, 5777846), (4070, 4997056), (4736, 4294345), (5920, 3435476), (6512, 3123160), (7040, 2888923), (8140, 2498528), (11840, 1717738), (13024, 1561580), (16280, 1249264), (23680, 858869), (26048, 780790), (32560, 624632), (52096, 390395), (65120, 312316), (78079, 260480), (130240, 156158)]