217997680

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{461}}^1$

素因数の和:754

約数の個数: 80

約数和(自身を含む): 532090944

約数和(自身を除く): 314093264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 257, 368, 460, 461, 514, 920, 922, 1028, 1285, 1840, 1844, 2056, 2305, 2570, 3688, 4112, 4610, 5140, 5911, 7376, 9220, 10280, 10603, 11822, 18440, 20560, 21206, 23644, 29555, 36880, 42412, 47288, 53015, 59110, 84824, 94576, 106030, 118220, 118477, 169648, 212060, 236440, 236954, 424120, 472880, 473908, 592385, 848240, 947816, 1184770, 1895632, 2369540, 2724971, 4739080, 5449942, 9478160, 10899884, 13624855, 21799768, 27249710, 43599536, 54499420, 108998840, 217997680]

約数ペア:

[(1, 217997680), (2, 108998840), (4, 54499420), (5, 43599536), (8, 27249710), (10, 21799768), (16, 13624855), (20, 10899884), (23, 9478160), (40, 5449942), (46, 4739080), (80, 2724971), (92, 2369540), (115, 1895632), (184, 1184770), (230, 947816), (257, 848240), (368, 592385), (460, 473908), (461, 472880), (514, 424120), (920, 236954), (922, 236440), (1028, 212060), (1285, 169648), (1840, 118477), (1844, 118220), (2056, 106030), (2305, 94576), (2570, 84824), (3688, 59110), (4112, 53015), (4610, 47288), (5140, 42412), (5911, 36880), (7376, 29555), (9220, 23644), (10280, 21206), (10603, 20560), (11822, 18440)]