68971520

素因数分解:

$2^{10}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{709}}^1$

素因数の和:753

約数の個数: 88

約数和(自身を含む): 174404400

約数和(自身を除く): 105432880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 608, 640, 709, 760, 1024, 1216, 1280, 1418, 1520, 2432, 2560, 2836, 3040, 3545, 4864, 5120, 5672, 6080, 7090, 9728, 11344, 12160, 13471, 14180, 19456, 22688, 24320, 26942, 28360, 45376, 48640, 53884, 56720, 67355, 90752, 97280, 107768, 113440, 134710, 181504, 215536, 226880, 269420, 363008, 431072, 453760, 538840, 726016, 862144, 907520, 1077680, 1724288, 1815040, 2155360, 3448576, 3630080, 4310720, 6897152, 8621440, 13794304, 17242880, 34485760, 68971520]

約数ペア:

[(1, 68971520), (2, 34485760), (4, 17242880), (5, 13794304), (8, 8621440), (10, 6897152), (16, 4310720), (19, 3630080), (20, 3448576), (32, 2155360), (38, 1815040), (40, 1724288), (64, 1077680), (76, 907520), (80, 862144), (95, 726016), (128, 538840), (152, 453760), (160, 431072), (190, 363008), (256, 269420), (304, 226880), (320, 215536), (380, 181504), (512, 134710), (608, 113440), (640, 107768), (709, 97280), (760, 90752), (1024, 67355), (1216, 56720), (1280, 53884), (1418, 48640), (1520, 45376), (2432, 28360), (2560, 26942), (2836, 24320), (3040, 22688), (3545, 19456), (4864, 14180), (5120, 13471), (5672, 12160), (6080, 11344), (7090, 9728)]