20720810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1667}}^1$

素因数の和:1798

約数の個数: 32

約数和(自身を含む): 41072832

約数和(自身を除く): 20352022

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 113, 226, 565, 1130, 1243, 1667, 2486, 3334, 6215, 8335, 12430, 16670, 18337, 36674, 91685, 183370, 188371, 376742, 941855, 1883710, 2072081, 4144162, 10360405, 20720810]

約数ペア:

[(1, 20720810), (2, 10360405), (5, 4144162), (10, 2072081), (11, 1883710), (22, 941855), (55, 376742), (110, 188371), (113, 183370), (226, 91685), (565, 36674), (1130, 18337), (1243, 16670), (1667, 12430), (2486, 8335), (3334, 6215)]