138661120

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^2\times {\mathrm{641}}^1$

素因数の和:688

約数の個数: 108

約数和(自身を含む): 360212076

約数和(自身を除く): 221550956

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 208, 256, 260, 320, 338, 416, 520, 640, 641, 676, 832, 845, 1040, 1280, 1282, 1352, 1664, 1690, 2080, 2564, 2704, 3205, 3328, 3380, 4160, 5128, 5408, 6410, 6760, 8320, 8333, 10256, 10816, 12820, 13520, 16640, 16666, 20512, 21632, 25640, 27040, 33332, 41024, 41665, 43264, 51280, 54080, 66664, 82048, 83330, 102560, 108160, 108329, 133328, 164096, 166660, 205120, 216320, 216658, 266656, 333320, 410240, 433316, 533312, 541645, 666640, 820480, 866632, 1066624, 1083290, 1333280, 1733264, 2133248, 2166580, 2666560, 3466528, 4333160, 5333120, 6933056, 8666320, 10666240, 13866112, 17332640, 27732224, 34665280, 69330560, 138661120]

約数ペア:

[(1, 138661120), (2, 69330560), (4, 34665280), (5, 27732224), (8, 17332640), (10, 13866112), (13, 10666240), (16, 8666320), (20, 6933056), (26, 5333120), (32, 4333160), (40, 3466528), (52, 2666560), (64, 2166580), (65, 2133248), (80, 1733264), (104, 1333280), (128, 1083290), (130, 1066624), (160, 866632), (169, 820480), (208, 666640), (256, 541645), (260, 533312), (320, 433316), (338, 410240), (416, 333320), (520, 266656), (640, 216658), (641, 216320), (676, 205120), (832, 166660), (845, 164096), (1040, 133328), (1280, 108329), (1282, 108160), (1352, 102560), (1664, 83330), (1690, 82048), (2080, 66664), (2564, 54080), (2704, 51280), (3205, 43264), (3328, 41665), (3380, 41024), (4160, 33332), (5128, 27040), (5408, 25640), (6410, 21632), (6760, 20512), (8320, 16666), (8333, 16640), (10256, 13520), (10816, 12820)]