25186780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{839}}^1$

素因数の和:946

約数の個数: 48

約数和(自身を含む): 56448000

約数和(自身を除く): 31261220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 839, 1501, 1580, 1678, 3002, 3356, 4195, 6004, 7505, 8390, 15010, 15941, 16780, 30020, 31882, 63764, 66281, 79705, 132562, 159410, 265124, 318820, 331405, 662810, 1259339, 1325620, 2518678, 5037356, 6296695, 12593390, 25186780]

約数ペア:

[(1, 25186780), (2, 12593390), (4, 6296695), (5, 5037356), (10, 2518678), (19, 1325620), (20, 1259339), (38, 662810), (76, 331405), (79, 318820), (95, 265124), (158, 159410), (190, 132562), (316, 79705), (380, 66281), (395, 63764), (790, 31882), (839, 30020), (1501, 16780), (1580, 15941), (1678, 15010), (3002, 8390), (3356, 7505), (4195, 6004)]