138691840

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{673}}^1$

素因数の和:724

約数の個数: 144

約数和(自身を含む): 396764928

約数和(自身を除く): 258073088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 128, 140, 160, 161, 184, 224, 230, 256, 280, 320, 322, 368, 448, 460, 560, 640, 644, 673, 736, 805, 896, 920, 1120, 1280, 1288, 1346, 1472, 1610, 1792, 1840, 2240, 2576, 2692, 2944, 3220, 3365, 3680, 4480, 4711, 5152, 5384, 5888, 6440, 6730, 7360, 8960, 9422, 10304, 10768, 12880, 13460, 14720, 15479, 18844, 20608, 21536, 23555, 25760, 26920, 29440, 30958, 37688, 41216, 43072, 47110, 51520, 53840, 61916, 75376, 77395, 86144, 94220, 103040, 107680, 108353, 123832, 150752, 154790, 172288, 188440, 206080, 215360, 216706, 247664, 301504, 309580, 376880, 430720, 433412, 495328, 541765, 603008, 619160, 753760, 861440, 866824, 990656, 1083530, 1206016, 1238320, 1507520, 1733648, 1981312, 2167060, 2476640, 3015040, 3467296, 3962624, 4334120, 4953280, 6030080, 6934592, 8668240, 9906560, 13869184, 17336480, 19813120, 27738368, 34672960, 69345920, 138691840]

約数ペア:

[(1, 138691840), (2, 69345920), (4, 34672960), (5, 27738368), (7, 19813120), (8, 17336480), (10, 13869184), (14, 9906560), (16, 8668240), (20, 6934592), (23, 6030080), (28, 4953280), (32, 4334120), (35, 3962624), (40, 3467296), (46, 3015040), (56, 2476640), (64, 2167060), (70, 1981312), (80, 1733648), (92, 1507520), (112, 1238320), (115, 1206016), (128, 1083530), (140, 990656), (160, 866824), (161, 861440), (184, 753760), (224, 619160), (230, 603008), (256, 541765), (280, 495328), (320, 433412), (322, 430720), (368, 376880), (448, 309580), (460, 301504), (560, 247664), (640, 216706), (644, 215360), (673, 206080), (736, 188440), (805, 172288), (896, 154790), (920, 150752), (1120, 123832), (1280, 108353), (1288, 107680), (1346, 103040), (1472, 94220), (1610, 86144), (1792, 77395), (1840, 75376), (2240, 61916), (2576, 53840), (2692, 51520), (2944, 47110), (3220, 43072), (3365, 41216), (3680, 37688), (4480, 30958), (4711, 29440), (5152, 26920), (5384, 25760), (5888, 23555), (6440, 21536), (6730, 20608), (7360, 18844), (8960, 15479), (9422, 14720), (10304, 13460), (10768, 12880)]