127928320

素因数分解:

$2^{11}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2$

素因数の和:102

約数の個数: 144

約数和(自身を含む): 341572140

約数和(自身を除く): 213643820

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 496, 512, 520, 620, 640, 806, 832, 961, 992, 1024, 1040, 1240, 1280, 1612, 1664, 1922, 1984, 2015, 2048, 2080, 2480, 2560, 3224, 3328, 3844, 3968, 4030, 4160, 4805, 4960, 5120, 6448, 6656, 7688, 7936, 8060, 8320, 9610, 9920, 10240, 12493, 12896, 13312, 15376, 15872, 16120, 16640, 19220, 19840, 24986, 25792, 26624, 30752, 31744, 32240, 33280, 38440, 39680, 49972, 51584, 61504, 62465, 63488, 64480, 66560, 76880, 79360, 99944, 103168, 123008, 124930, 128960, 133120, 153760, 158720, 199888, 206336, 246016, 249860, 257920, 307520, 317440, 399776, 412672, 492032, 499720, 515840, 615040, 799552, 825344, 984064, 999440, 1031680, 1230080, 1599104, 1968128, 1998880, 2063360, 2460160, 3198208, 3997760, 4126720, 4920320, 6396416, 7995520, 9840640, 12792832, 15991040, 25585664, 31982080, 63964160, 127928320]

約数ペア:

[(1, 127928320), (2, 63964160), (4, 31982080), (5, 25585664), (8, 15991040), (10, 12792832), (13, 9840640), (16, 7995520), (20, 6396416), (26, 4920320), (31, 4126720), (32, 3997760), (40, 3198208), (52, 2460160), (62, 2063360), (64, 1998880), (65, 1968128), (80, 1599104), (104, 1230080), (124, 1031680), (128, 999440), (130, 984064), (155, 825344), (160, 799552), (208, 615040), (248, 515840), (256, 499720), (260, 492032), (310, 412672), (320, 399776), (403, 317440), (416, 307520), (496, 257920), (512, 249860), (520, 246016), (620, 206336), (640, 199888), (806, 158720), (832, 153760), (961, 133120), (992, 128960), (1024, 124930), (1040, 123008), (1240, 103168), (1280, 99944), (1612, 79360), (1664, 76880), (1922, 66560), (1984, 64480), (2015, 63488), (2048, 62465), (2080, 61504), (2480, 51584), (2560, 49972), (3224, 39680), (3328, 38440), (3844, 33280), (3968, 32240), (4030, 31744), (4160, 30752), (4805, 26624), (4960, 25792), (5120, 24986), (6448, 19840), (6656, 19220), (7688, 16640), (7936, 16120), (8060, 15872), (8320, 15376), (9610, 13312), (9920, 12896), (10240, 12493)]