42138005

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2503}}^1$

素因数の和:2565

約数の個数: 32

約数和(自身を含む): 63942144

約数和(自身を除く): 21804139

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 185, 259, 455, 481, 1295, 2405, 2503, 3367, 12515, 16835, 17521, 32539, 87605, 92611, 162695, 227773, 463055, 648277, 1138865, 1203943, 3241385, 6019715, 8427601, 42138005]

約数ペア:

[(1, 42138005), (5, 8427601), (7, 6019715), (13, 3241385), (35, 1203943), (37, 1138865), (65, 648277), (91, 463055), (185, 227773), (259, 162695), (455, 92611), (481, 87605), (1295, 32539), (2405, 17521), (2503, 16835), (3367, 12515)]