16939520

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1$

素因数の和:545

約数の個数: 80

約数和(自身を含む): 43825320

約数和(自身を除く): 26885800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 509, 512, 520, 640, 832, 1018, 1040, 1280, 1664, 2036, 2080, 2545, 2560, 3328, 4072, 4160, 5090, 6617, 6656, 8144, 8320, 10180, 13234, 16288, 16640, 20360, 26468, 32576, 33085, 33280, 40720, 52936, 65152, 66170, 81440, 105872, 130304, 132340, 162880, 211744, 260608, 264680, 325760, 423488, 529360, 651520, 846976, 1058720, 1303040, 1693952, 2117440, 3387904, 4234880, 8469760, 16939520]

約数ペア:

[(1, 16939520), (2, 8469760), (4, 4234880), (5, 3387904), (8, 2117440), (10, 1693952), (13, 1303040), (16, 1058720), (20, 846976), (26, 651520), (32, 529360), (40, 423488), (52, 325760), (64, 264680), (65, 260608), (80, 211744), (104, 162880), (128, 132340), (130, 130304), (160, 105872), (208, 81440), (256, 66170), (260, 65152), (320, 52936), (416, 40720), (509, 33280), (512, 33085), (520, 32576), (640, 26468), (832, 20360), (1018, 16640), (1040, 16288), (1280, 13234), (1664, 10180), (2036, 8320), (2080, 8144), (2545, 6656), (2560, 6617), (3328, 5090), (4072, 4160)]