20138390

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:392

約数の個数: 32

約数和(自身を含む): 37131264

約数和(自身を除く): 16992874

約数列:

[1, 2, 5, 10, 101, 127, 157, 202, 254, 314, 505, 635, 785, 1010, 1270, 1570, 12827, 15857, 19939, 25654, 31714, 39878, 64135, 79285, 99695, 128270, 158570, 199390, 2013839, 4027678, 10069195, 20138390]

約数ペア:

[(1, 20138390), (2, 10069195), (5, 4027678), (10, 2013839), (101, 199390), (127, 158570), (157, 128270), (202, 99695), (254, 79285), (314, 64135), (505, 39878), (635, 31714), (785, 25654), (1010, 19939), (1270, 15857), (1570, 12827)]