5125640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9857}}^1$

素因数の和:9881

約数の個数: 32

約数和(自身を含む): 12421080

約数和(自身を除く): 7295440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 9857, 19714, 39428, 49285, 78856, 98570, 128141, 197140, 256282, 394280, 512564, 640705, 1025128, 1281410, 2562820, 5125640]

約数ペア:

[(1, 5125640), (2, 2562820), (4, 1281410), (5, 1025128), (8, 640705), (10, 512564), (13, 394280), (20, 256282), (26, 197140), (40, 128141), (52, 98570), (65, 78856), (104, 49285), (130, 39428), (260, 19714), (520, 9857)]