90991010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{19237}}^1$

素因数の和:19298

約数の個数: 32

約数和(自身を含む): 182837952

約数和(自身を除く): 91846942

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 430, 473, 946, 2365, 4730, 19237, 38474, 96185, 192370, 211607, 423214, 827191, 1058035, 1654382, 2116070, 4135955, 8271910, 9099101, 18198202, 45495505, 90991010]

約数ペア:

[(1, 90991010), (2, 45495505), (5, 18198202), (10, 9099101), (11, 8271910), (22, 4135955), (43, 2116070), (55, 1654382), (86, 1058035), (110, 827191), (215, 423214), (430, 211607), (473, 192370), (946, 96185), (2365, 38474), (4730, 19237)]