261121142

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1\times {\mathrm{409}}^1$

素因数の和:800

約数の個数: 32

約数和(自身を含む): 422431200

約数和(自身を除く): 161310058

約数列:

[1, 2, 19, 38, 53, 106, 317, 409, 634, 818, 1007, 2014, 6023, 7771, 12046, 15542, 16801, 21677, 33602, 43354, 129653, 259306, 319219, 411863, 638438, 823726, 2463407, 4926814, 6871609, 13743218, 130560571, 261121142]

約数ペア:

[(1, 261121142), (2, 130560571), (19, 13743218), (38, 6871609), (53, 4926814), (106, 2463407), (317, 823726), (409, 638438), (634, 411863), (818, 319219), (1007, 259306), (2014, 129653), (6023, 43354), (7771, 33602), (12046, 21677), (15542, 16801)]