190268845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{421}}^1$

素因数の和:865

約数の個数: 32

約数和(自身を含む): 261606240

約数和(自身を除く): 71337395

約数列:

[1, 5, 13, 17, 65, 85, 221, 409, 421, 1105, 2045, 2105, 5317, 5473, 6953, 7157, 26585, 27365, 34765, 35785, 90389, 93041, 172189, 451945, 465205, 860945, 2238457, 2927213, 11192285, 14636065, 38053769, 190268845]

約数ペア:

[(1, 190268845), (5, 38053769), (13, 14636065), (17, 11192285), (65, 2927213), (85, 2238457), (221, 860945), (409, 465205), (421, 451945), (1105, 172189), (2045, 93041), (2105, 90389), (5317, 35785), (5473, 34765), (6953, 27365), (7157, 26585)]