137438965

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1213}}^1$

素因数の和:1309

約数の個数: 32

約数和(自身を含む): 184605696

約数和(自身を除く): 47166731

約数列:

[1, 5, 17, 31, 43, 85, 155, 215, 527, 731, 1213, 1333, 2635, 3655, 6065, 6665, 20621, 22661, 37603, 52159, 103105, 113305, 188015, 260795, 639251, 886703, 1616929, 3196255, 4433515, 8084645, 27487793, 137438965]

約数ペア:

[(1, 137438965), (5, 27487793), (17, 8084645), (31, 4433515), (43, 3196255), (85, 1616929), (155, 886703), (215, 639251), (527, 260795), (731, 188015), (1213, 113305), (1333, 103105), (2635, 52159), (3655, 37603), (6065, 22661), (6665, 20621)]