20138876

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{1249}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 36750000

約数和(自身を除く): 16611124

約数列:

[1, 2, 4, 29, 58, 116, 139, 278, 556, 1249, 2498, 4031, 4996, 8062, 16124, 36221, 72442, 144884, 173611, 347222, 694444, 5034719, 10069438, 20138876]

約数ペア:

[(1, 20138876), (2, 10069438), (4, 5034719), (29, 694444), (58, 347222), (116, 173611), (139, 144884), (278, 72442), (556, 36221), (1249, 16124), (2498, 8062), (4031, 4996)]