640086128

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{330623}}^1$

素因数の和:330653

約数の個数: 30

約数和(自身を含む): 1363162752

約数和(自身を除く): 723076624

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 121, 176, 242, 484, 968, 1936, 330623, 661246, 1322492, 2644984, 3636853, 5289968, 7273706, 14547412, 29094824, 40005383, 58189648, 80010766, 160021532, 320043064, 640086128]

約数ペア:

[(1, 640086128), (2, 320043064), (4, 160021532), (8, 80010766), (11, 58189648), (16, 40005383), (22, 29094824), (44, 14547412), (88, 7273706), (121, 5289968), (176, 3636853), (242, 2644984), (484, 1322492), (968, 661246), (1936, 330623)]