31308865

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{89}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 47779200

約数和(自身を除く): 16470335

約数列:

[1, 5, 7, 19, 23, 35, 89, 95, 115, 133, 161, 437, 445, 529, 623, 665, 805, 1691, 2047, 2185, 2645, 3059, 3115, 3703, 8455, 10051, 10235, 11837, 14329, 15295, 18515, 38893, 47081, 50255, 59185, 70357, 71645, 194465, 235405, 272251, 329567, 351785, 894539, 1361255, 1647835, 4472695, 6261773, 31308865]

約数ペア:

[(1, 31308865), (5, 6261773), (7, 4472695), (19, 1647835), (23, 1361255), (35, 894539), (89, 351785), (95, 329567), (115, 272251), (133, 235405), (161, 194465), (437, 71645), (445, 70357), (529, 59185), (623, 50255), (665, 47081), (805, 38893), (1691, 18515), (2047, 15295), (2185, 14329), (2645, 11837), (3059, 10235), (3115, 10051), (3703, 8455)]