68704520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{41893}}^1$

素因数の和:41945

約数の個数: 32

約数和(自身を含む): 158359320

約数和(自身を除く): 89654800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 41893, 83786, 167572, 209465, 335144, 418930, 837860, 1675720, 1717613, 3435226, 6870452, 8588065, 13740904, 17176130, 34352260, 68704520]

約数ペア:

[(1, 68704520), (2, 34352260), (4, 17176130), (5, 13740904), (8, 8588065), (10, 6870452), (20, 3435226), (40, 1717613), (41, 1675720), (82, 837860), (164, 418930), (205, 335144), (328, 209465), (410, 167572), (820, 83786), (1640, 41893)]