2562640

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:427

約数の個数: 40

約数和(自身を含む): 6035328

約数和(自身を除く): 3472688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 311, 412, 515, 622, 824, 1030, 1244, 1555, 1648, 2060, 2488, 3110, 4120, 4976, 6220, 8240, 12440, 24880, 32033, 64066, 128132, 160165, 256264, 320330, 512528, 640660, 1281320, 2562640]

約数ペア:

[(1, 2562640), (2, 1281320), (4, 640660), (5, 512528), (8, 320330), (10, 256264), (16, 160165), (20, 128132), (40, 64066), (80, 32033), (103, 24880), (206, 12440), (311, 8240), (412, 6220), (515, 4976), (622, 4120), (824, 3110), (1030, 2488), (1244, 2060), (1555, 1648)]