20790970

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71693}}^1$

素因数の和:71729

約数の個数: 16

約数和(自身を含む): 38714760

約数和(自身を除く): 17923790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 71693, 143386, 358465, 716930, 2079097, 4158194, 10395485, 20790970]

約数ペア:

[(1, 20790970), (2, 10395485), (5, 4158194), (10, 2079097), (29, 716930), (58, 358465), (145, 143386), (290, 71693)]