399745136

素因数分解:

$2^4\times 7^2\times {\mathrm{509879}}^1$

素因数の和:509901

約数の個数: 30

約数和(自身を含む): 900957960

約数和(自身を除く): 501212824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 509879, 1019758, 2039516, 3569153, 4079032, 7138306, 8158064, 14276612, 24984071, 28553224, 49968142, 57106448, 99936284, 199872568, 399745136]

約数ペア:

[(1, 399745136), (2, 199872568), (4, 99936284), (7, 57106448), (8, 49968142), (14, 28553224), (16, 24984071), (28, 14276612), (49, 8158064), (56, 7138306), (98, 4079032), (112, 3569153), (196, 2039516), (392, 1019758), (784, 509879)]