20849860

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14683}}^1$

素因数の和:14763

約数の個数: 24

約数和(自身を含む): 44404416

約数和(自身を除く): 23554556

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14683, 29366, 58732, 73415, 146830, 293660, 1042493, 2084986, 4169972, 5212465, 10424930, 20849860]

約数ペア:

[(1, 20849860), (2, 10424930), (4, 5212465), (5, 4169972), (10, 2084986), (20, 1042493), (71, 293660), (142, 146830), (284, 73415), (355, 58732), (710, 29366), (1420, 14683)]