38621440

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:256

約数の個数: 144

約数和(自身を含む): 109198656

約数和(自身を除く): 70577216

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 128, 130, 143, 160, 176, 208, 211, 220, 256, 260, 286, 320, 352, 416, 422, 440, 520, 572, 640, 704, 715, 832, 844, 880, 1040, 1055, 1144, 1280, 1408, 1430, 1664, 1688, 1760, 2080, 2110, 2288, 2321, 2743, 2816, 2860, 3328, 3376, 3520, 4160, 4220, 4576, 4642, 5486, 5720, 6752, 7040, 8320, 8440, 9152, 9284, 10972, 11440, 11605, 13504, 13715, 14080, 16640, 16880, 18304, 18568, 21944, 22880, 23210, 27008, 27430, 30173, 33760, 36608, 37136, 43888, 45760, 46420, 54016, 54860, 60346, 67520, 74272, 87776, 91520, 92840, 109720, 120692, 135040, 148544, 150865, 175552, 183040, 185680, 219440, 241384, 270080, 297088, 301730, 351104, 371360, 438880, 482768, 594176, 603460, 702208, 742720, 877760, 965536, 1206920, 1485440, 1755520, 1931072, 2413840, 2970880, 3511040, 3862144, 4827680, 7724288, 9655360, 19310720, 38621440]

約数ペア:

[(1, 38621440), (2, 19310720), (4, 9655360), (5, 7724288), (8, 4827680), (10, 3862144), (11, 3511040), (13, 2970880), (16, 2413840), (20, 1931072), (22, 1755520), (26, 1485440), (32, 1206920), (40, 965536), (44, 877760), (52, 742720), (55, 702208), (64, 603460), (65, 594176), (80, 482768), (88, 438880), (104, 371360), (110, 351104), (128, 301730), (130, 297088), (143, 270080), (160, 241384), (176, 219440), (208, 185680), (211, 183040), (220, 175552), (256, 150865), (260, 148544), (286, 135040), (320, 120692), (352, 109720), (416, 92840), (422, 91520), (440, 87776), (520, 74272), (572, 67520), (640, 60346), (704, 54860), (715, 54016), (832, 46420), (844, 45760), (880, 43888), (1040, 37136), (1055, 36608), (1144, 33760), (1280, 30173), (1408, 27430), (1430, 27008), (1664, 23210), (1688, 22880), (1760, 21944), (2080, 18568), (2110, 18304), (2288, 16880), (2321, 16640), (2743, 14080), (2816, 13715), (2860, 13504), (3328, 11605), (3376, 11440), (3520, 10972), (4160, 9284), (4220, 9152), (4576, 8440), (4642, 8320), (5486, 7040), (5720, 6752)]