82704040

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{4211}}^1$

素因数の和:4713

約数の個数: 32

約数和(自身を含む): 186507360

約数和(自身を除く): 103803320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4211, 4910, 8422, 9820, 16844, 19640, 21055, 33688, 42110, 84220, 168440, 2067601, 4135202, 8270404, 10338005, 16540808, 20676010, 41352020, 82704040]

約数ペア:

[(1, 82704040), (2, 41352020), (4, 20676010), (5, 16540808), (8, 10338005), (10, 8270404), (20, 4135202), (40, 2067601), (491, 168440), (982, 84220), (1964, 42110), (2455, 33688), (3928, 21055), (4211, 19640), (4910, 16844), (8422, 9820)]