164392520

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{29567}}^1$

素因数の和:29717

約数の個数: 32

約数和(自身を含む): 372556800

約数和(自身を除く): 208164280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 29567, 59134, 118268, 147835, 236536, 295670, 591340, 1182680, 4109813, 8219626, 16439252, 20549065, 32878504, 41098130, 82196260, 164392520]

約数ペア:

[(1, 164392520), (2, 82196260), (4, 41098130), (5, 32878504), (8, 20549065), (10, 16439252), (20, 8219626), (40, 4109813), (139, 1182680), (278, 591340), (556, 295670), (695, 236536), (1112, 147835), (1390, 118268), (2780, 59134), (5560, 29567)]