20399992

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{87931}}^1$

素因数の和:87966

約数の個数: 16

約数和(自身を含む): 39569400

約数和(自身を除く): 19169408

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 87931, 175862, 351724, 703448, 2549999, 5099998, 10199996, 20399992]

約数ペア:

[(1, 20399992), (2, 10199996), (4, 5099998), (8, 2549999), (29, 703448), (58, 351724), (116, 175862), (232, 87931)]