131840

素因数分解:

$2^8\times 5^1\times {\mathrm{103}}^1$

素因数の和:124

約数の個数: 36

約数和(自身を含む): 318864

約数和(自身を除く): 187024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 206, 256, 320, 412, 515, 640, 824, 1030, 1280, 1648, 2060, 3296, 4120, 6592, 8240, 13184, 16480, 26368, 32960, 65920, 131840]

約数ペア:

[(1, 131840), (2, 65920), (4, 32960), (5, 26368), (8, 16480), (10, 13184), (16, 8240), (20, 6592), (32, 4120), (40, 3296), (64, 2060), (80, 1648), (103, 1280), (128, 1030), (160, 824), (206, 640), (256, 515), (320, 412)]