1639207616

素因数分解:

$2^6\times {\mathrm{61}}^1\times {\mathrm{643}}^1\times {\mathrm{653}}^1$

素因数の和:1369

約数の個数: 56

約数和(自身を含む): 3316339824

約数和(自身を除く): 1677132208

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 244, 488, 643, 653, 976, 1286, 1306, 1952, 2572, 2612, 3904, 5144, 5224, 10288, 10448, 20576, 20896, 39223, 39833, 41152, 41792, 78446, 79666, 156892, 159332, 313784, 318664, 419879, 627568, 637328, 839758, 1255136, 1274656, 1679516, 2510272, 2549312, 3359032, 6718064, 13436128, 25612619, 26872256, 51225238, 102450476, 204900952, 409801904, 819603808, 1639207616]

約数ペア:

[(1, 1639207616), (2, 819603808), (4, 409801904), (8, 204900952), (16, 102450476), (32, 51225238), (61, 26872256), (64, 25612619), (122, 13436128), (244, 6718064), (488, 3359032), (643, 2549312), (653, 2510272), (976, 1679516), (1286, 1274656), (1306, 1255136), (1952, 839758), (2572, 637328), (2612, 627568), (3904, 419879), (5144, 318664), (5224, 313784), (10288, 159332), (10448, 156892), (20576, 79666), (20896, 78446), (39223, 41792), (39833, 41152)]