256203610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{881}}^1\times {\mathrm{2237}}^1$

素因数の和:3138

約数の個数: 32

約数和(自身を含む): 497426832

約数和(自身を除く): 241223222

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 881, 1762, 2237, 4405, 4474, 8810, 11185, 11453, 22370, 22906, 29081, 57265, 58162, 114530, 145405, 290810, 1970797, 3941594, 9853985, 19707970, 25620361, 51240722, 128101805, 256203610]

約数ペア:

[(1, 256203610), (2, 128101805), (5, 51240722), (10, 25620361), (13, 19707970), (26, 9853985), (65, 3941594), (130, 1970797), (881, 290810), (1762, 145405), (2237, 114530), (4405, 58162), (4474, 57265), (8810, 29081), (11185, 22906), (11453, 22370)]