205875370

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{1979}}^1$

素因数の和:2190

約数の個数: 32

約数和(自身を含む): 378069120

約数和(自身を除く): 172193750

約数列:

[1, 2, 5, 10, 101, 103, 202, 206, 505, 515, 1010, 1030, 1979, 3958, 9895, 10403, 19790, 20806, 52015, 104030, 199879, 203837, 399758, 407674, 999395, 1019185, 1998790, 2038370, 20587537, 41175074, 102937685, 205875370]

約数ペア:

[(1, 205875370), (2, 102937685), (5, 41175074), (10, 20587537), (101, 2038370), (103, 1998790), (202, 1019185), (206, 999395), (505, 407674), (515, 399758), (1010, 203837), (1030, 199879), (1979, 104030), (3958, 52015), (9895, 20806), (10403, 19790)]