256406178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{321311}}^1$

素因数の和:321342

約数の個数: 32

約数和(自身を含む): 616919040

約数和(自身を除く): 360512862

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798, 321311, 642622, 963933, 1927866, 2249177, 4498354, 6104909, 6747531, 12209818, 13495062, 18314727, 36629454, 42734363, 85468726, 128203089, 256406178]

約数ペア:

[(1, 256406178), (2, 128203089), (3, 85468726), (6, 42734363), (7, 36629454), (14, 18314727), (19, 13495062), (21, 12209818), (38, 6747531), (42, 6104909), (57, 4498354), (114, 2249177), (133, 1927866), (266, 963933), (399, 642622), (798, 321311)]