20705288

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{761}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 41148000

約数和(自身を除く): 20442712

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 179, 358, 716, 761, 1432, 1522, 3044, 3401, 6088, 6802, 13604, 14459, 27208, 28918, 57836, 115672, 136219, 272438, 544876, 1089752, 2588161, 5176322, 10352644, 20705288]

約数ペア:

[(1, 20705288), (2, 10352644), (4, 5176322), (8, 2588161), (19, 1089752), (38, 544876), (76, 272438), (152, 136219), (179, 115672), (358, 57836), (716, 28918), (761, 27208), (1432, 14459), (1522, 13604), (3044, 6802), (3401, 6088)]