251354890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1\times {\mathrm{2011}}^1$

素因数の和:2478

約数の個数: 32

約数和(自身を含む): 469359360

約数和(自身を除く): 218004470

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 431, 862, 2011, 2155, 4022, 4310, 10055, 12499, 20110, 24998, 58319, 62495, 116638, 124990, 291595, 583190, 866741, 1733482, 4333705, 8667410, 25135489, 50270978, 125677445, 251354890]

約数ペア:

[(1, 251354890), (2, 125677445), (5, 50270978), (10, 25135489), (29, 8667410), (58, 4333705), (145, 1733482), (290, 866741), (431, 583190), (862, 291595), (2011, 124990), (2155, 116638), (4022, 62495), (4310, 58319), (10055, 24998), (12499, 20110)]