393251456

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{236329}}^1$

素因数の和:236356

約数の個数: 32

約数和(自身を含む): 843698100

約数和(自身を除く): 450446644

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 236329, 472658, 945316, 1890632, 3072277, 3781264, 6144554, 7562528, 12289108, 15125056, 24578216, 30250112, 49156432, 98312864, 196625728, 393251456]

約数ペア:

[(1, 393251456), (2, 196625728), (4, 98312864), (8, 49156432), (13, 30250112), (16, 24578216), (26, 15125056), (32, 12289108), (52, 7562528), (64, 6144554), (104, 3781264), (128, 3072277), (208, 1890632), (416, 945316), (832, 472658), (1664, 236329)]