259685960

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{59561}}^1$

素因数の和:59681

約数の個数: 32

約数和(自身を含む): 589663800

約数和(自身を除く): 329977840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 59561, 119122, 238244, 297805, 476488, 595610, 1191220, 2382440, 6492149, 12984298, 25968596, 32460745, 51937192, 64921490, 129842980, 259685960]

約数ペア:

[(1, 259685960), (2, 129842980), (4, 64921490), (5, 51937192), (8, 32460745), (10, 25968596), (20, 12984298), (40, 6492149), (109, 2382440), (218, 1191220), (436, 595610), (545, 476488), (872, 297805), (1090, 238244), (2180, 119122), (4360, 59561)]