20840065

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{887}}^1$

素因数の和:1056

約数の個数: 16

約数和(自身を含む): 25915392

約数和(自身を除く): 5075327

約数列:

[1, 5, 37, 127, 185, 635, 887, 4435, 4699, 23495, 32819, 112649, 164095, 563245, 4168013, 20840065]

約数ペア:

[(1, 20840065), (5, 4168013), (37, 563245), (127, 164095), (185, 112649), (635, 32819), (887, 23495), (4435, 4699)]