20719616

素因数分解:

$2^{11}\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 42325920

約数和(自身を除く): 21606304

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 128, 134, 151, 256, 268, 302, 512, 536, 604, 1024, 1072, 1208, 2048, 2144, 2416, 4288, 4832, 8576, 9664, 10117, 17152, 19328, 20234, 34304, 38656, 40468, 68608, 77312, 80936, 137216, 154624, 161872, 309248, 323744, 647488, 1294976, 2589952, 5179904, 10359808, 20719616]

約数ペア:

[(1, 20719616), (2, 10359808), (4, 5179904), (8, 2589952), (16, 1294976), (32, 647488), (64, 323744), (67, 309248), (128, 161872), (134, 154624), (151, 137216), (256, 80936), (268, 77312), (302, 68608), (512, 40468), (536, 38656), (604, 34304), (1024, 20234), (1072, 19328), (1208, 17152), (2048, 10117), (2144, 9664), (2416, 8576), (4288, 4832)]