401408

素因数分解:

$2^{13}\times 7^2$

素因数の和:40

約数の個数: 42

約数和(自身を含む): 933831

約数和(自身を除く): 532423

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 512, 784, 896, 1024, 1568, 1792, 2048, 3136, 3584, 4096, 6272, 7168, 8192, 12544, 14336, 25088, 28672, 50176, 57344, 100352, 200704, 401408]

約数ペア:

[(1, 401408), (2, 200704), (4, 100352), (7, 57344), (8, 50176), (14, 28672), (16, 25088), (28, 14336), (32, 12544), (49, 8192), (56, 7168), (64, 6272), (98, 4096), (112, 3584), (128, 3136), (196, 2048), (224, 1792), (256, 1568), (392, 1024), (448, 896), (512, 784)]