2052806480

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{249127}}^1$

素因数の和:249243

約数の個数: 40

約数和(自身を含む): 4819132032

約数和(自身を除く): 2766325552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 249127, 498254, 996508, 1245635, 1993016, 2491270, 3986032, 4982540, 9965080, 19930160, 25660081, 51320162, 102640324, 128300405, 205280648, 256600810, 410561296, 513201620, 1026403240, 2052806480]

約数ペア:

[(1, 2052806480), (2, 1026403240), (4, 513201620), (5, 410561296), (8, 256600810), (10, 205280648), (16, 128300405), (20, 102640324), (40, 51320162), (80, 25660081), (103, 19930160), (206, 9965080), (412, 4982540), (515, 3986032), (824, 2491270), (1030, 1993016), (1648, 1245635), (2060, 996508), (4120, 498254), (8240, 249127)]