168163840

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:230

約数の個数: 160

約数和(自身を含む): 450971136

約数和(自身を除く): 282807296

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, 163, 208, 248, 256, 260, 310, 320, 326, 403, 416, 496, 512, 520, 620, 640, 652, 806, 815, 832, 992, 1040, 1240, 1280, 1304, 1612, 1630, 1664, 1984, 2015, 2080, 2119, 2480, 2560, 2608, 3224, 3260, 3328, 3968, 4030, 4160, 4238, 4960, 5053, 5216, 6448, 6520, 6656, 7936, 8060, 8320, 8476, 9920, 10106, 10432, 10595, 12896, 13040, 15872, 16120, 16640, 16952, 19840, 20212, 20864, 21190, 25265, 25792, 26080, 32240, 33280, 33904, 39680, 40424, 41728, 42380, 50530, 51584, 52160, 64480, 65689, 67808, 79360, 80848, 83456, 84760, 101060, 103168, 104320, 128960, 131378, 135616, 161696, 169520, 202120, 206336, 208640, 257920, 262756, 271232, 323392, 328445, 339040, 404240, 417280, 515840, 525512, 542464, 646784, 656890, 678080, 808480, 1031680, 1051024, 1084928, 1293568, 1313780, 1356160, 1616960, 2102048, 2587136, 2627560, 2712320, 3233920, 4204096, 5255120, 5424640, 6467840, 8408192, 10510240, 12935680, 16816384, 21020480, 33632768, 42040960, 84081920, 168163840]

約数ペア:

[(1, 168163840), (2, 84081920), (4, 42040960), (5, 33632768), (8, 21020480), (10, 16816384), (13, 12935680), (16, 10510240), (20, 8408192), (26, 6467840), (31, 5424640), (32, 5255120), (40, 4204096), (52, 3233920), (62, 2712320), (64, 2627560), (65, 2587136), (80, 2102048), (104, 1616960), (124, 1356160), (128, 1313780), (130, 1293568), (155, 1084928), (160, 1051024), (163, 1031680), (208, 808480), (248, 678080), (256, 656890), (260, 646784), (310, 542464), (320, 525512), (326, 515840), (403, 417280), (416, 404240), (496, 339040), (512, 328445), (520, 323392), (620, 271232), (640, 262756), (652, 257920), (806, 208640), (815, 206336), (832, 202120), (992, 169520), (1040, 161696), (1240, 135616), (1280, 131378), (1304, 128960), (1612, 104320), (1630, 103168), (1664, 101060), (1984, 84760), (2015, 83456), (2080, 80848), (2119, 79360), (2480, 67808), (2560, 65689), (2608, 64480), (3224, 52160), (3260, 51584), (3328, 50530), (3968, 42380), (4030, 41728), (4160, 40424), (4238, 39680), (4960, 33904), (5053, 33280), (5216, 32240), (6448, 26080), (6520, 25792), (6656, 25265), (7936, 21190), (8060, 20864), (8320, 20212), (8476, 19840), (9920, 16952), (10106, 16640), (10432, 16120), (10595, 15872), (12896, 13040)]