68703280

素因数分解:

$2^4\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1361}}^1$

素因数の和:2005

約数の個数: 40

約数和(自身を含む): 160105824

約数和(自身を除く): 91402544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 631, 1262, 1361, 2524, 2722, 3155, 5048, 5444, 6310, 6805, 10096, 10888, 12620, 13610, 21776, 25240, 27220, 50480, 54440, 108880, 858791, 1717582, 3435164, 4293955, 6870328, 8587910, 13740656, 17175820, 34351640, 68703280]

約数ペア:

[(1, 68703280), (2, 34351640), (4, 17175820), (5, 13740656), (8, 8587910), (10, 6870328), (16, 4293955), (20, 3435164), (40, 1717582), (80, 858791), (631, 108880), (1262, 54440), (1361, 50480), (2524, 27220), (2722, 25240), (3155, 21776), (5048, 13610), (5444, 12620), (6310, 10888), (6805, 10096)]