1329220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1621}}^1$

素因数の和:1671

約数の個数: 24

約数和(自身を含む): 2861208

約数和(自身を除く): 1531988

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1621, 3242, 6484, 8105, 16210, 32420, 66461, 132922, 265844, 332305, 664610, 1329220]

約数ペア:

[(1, 1329220), (2, 664610), (4, 332305), (5, 265844), (10, 132922), (20, 66461), (41, 32420), (82, 16210), (164, 8105), (205, 6484), (410, 3242), (820, 1621)]