128505160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{458947}}^1$

素因数の和:458965

約数の個数: 32

約数和(自身を含む): 330442560

約数和(自身を除く): 201937400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 458947, 917894, 1835788, 2294735, 3212629, 3671576, 4589470, 6425258, 9178940, 12850516, 16063145, 18357880, 25701032, 32126290, 64252580, 128505160]

約数ペア:

[(1, 128505160), (2, 64252580), (4, 32126290), (5, 25701032), (7, 18357880), (8, 16063145), (10, 12850516), (14, 9178940), (20, 6425258), (28, 4589470), (35, 3671576), (40, 3212629), (56, 2294735), (70, 1835788), (140, 917894), (280, 458947)]