638490130

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{42089}}^1$

素因数の和:42174

約数の個数: 32

約数和(自身を含む): 1209161520

約数和(自身を除く): 570671390

約数列:

[1, 2, 5, 10, 37, 41, 74, 82, 185, 205, 370, 410, 1517, 3034, 7585, 15170, 42089, 84178, 210445, 420890, 1557293, 1725649, 3114586, 3451298, 7786465, 8628245, 15572930, 17256490, 63849013, 127698026, 319245065, 638490130]

約数ペア:

[(1, 638490130), (2, 319245065), (5, 127698026), (10, 63849013), (37, 17256490), (41, 15572930), (74, 8628245), (82, 7786465), (185, 3451298), (205, 3114586), (370, 1725649), (410, 1557293), (1517, 420890), (3034, 210445), (7585, 84178), (15170, 42089)]