85186520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:588

約数の個数: 64

約数和(自身を含む): 198374400

約数和(自身を除く): 113187880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 127, 164, 205, 254, 328, 409, 410, 508, 635, 818, 820, 1016, 1270, 1636, 1640, 2045, 2540, 3272, 4090, 5080, 5207, 8180, 10414, 16360, 16769, 20828, 26035, 33538, 41656, 51943, 52070, 67076, 83845, 103886, 104140, 134152, 167690, 207772, 208280, 259715, 335380, 415544, 519430, 670760, 1038860, 2077720, 2129663, 4259326, 8518652, 10648315, 17037304, 21296630, 42593260, 85186520]

約数ペア:

[(1, 85186520), (2, 42593260), (4, 21296630), (5, 17037304), (8, 10648315), (10, 8518652), (20, 4259326), (40, 2129663), (41, 2077720), (82, 1038860), (127, 670760), (164, 519430), (205, 415544), (254, 335380), (328, 259715), (409, 208280), (410, 207772), (508, 167690), (635, 134152), (818, 104140), (820, 103886), (1016, 83845), (1270, 67076), (1636, 52070), (1640, 51943), (2045, 41656), (2540, 33538), (3272, 26035), (4090, 20828), (5080, 16769), (5207, 16360), (8180, 10414)]