40195828

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{641}}^1$

素因数の和:963

約数の個数: 24

約数和(自身を含む): 71886024

約数和(自身を除く): 31690196

約数列:

[1, 2, 4, 61, 122, 244, 257, 514, 641, 1028, 1282, 2564, 15677, 31354, 39101, 62708, 78202, 156404, 164737, 329474, 658948, 10048957, 20097914, 40195828]

約数ペア:

[(1, 40195828), (2, 20097914), (4, 10048957), (61, 658948), (122, 329474), (244, 164737), (257, 156404), (514, 78202), (641, 62708), (1028, 39101), (1282, 31354), (2564, 15677)]