20265872

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1019}}^1$

素因数の和:1151

約数の個数: 40

約数和(自身を含む): 43256160

約数和(自身を除く): 22990288

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 113, 176, 226, 452, 904, 1019, 1243, 1808, 2038, 2486, 4076, 4972, 8152, 9944, 11209, 16304, 19888, 22418, 44836, 89672, 115147, 179344, 230294, 460588, 921176, 1266617, 1842352, 2533234, 5066468, 10132936, 20265872]

約数ペア:

[(1, 20265872), (2, 10132936), (4, 5066468), (8, 2533234), (11, 1842352), (16, 1266617), (22, 921176), (44, 460588), (88, 230294), (113, 179344), (176, 115147), (226, 89672), (452, 44836), (904, 22418), (1019, 19888), (1243, 16304), (1808, 11209), (2038, 9944), (2486, 8152), (4076, 4972)]