2498840

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{349}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 5670000

約数和(自身を除く): 3171160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 349, 358, 698, 716, 895, 1396, 1432, 1745, 1790, 2792, 3490, 3580, 6980, 7160, 13960, 62471, 124942, 249884, 312355, 499768, 624710, 1249420, 2498840]

約数ペア:

[(1, 2498840), (2, 1249420), (4, 624710), (5, 499768), (8, 312355), (10, 249884), (20, 124942), (40, 62471), (179, 13960), (349, 7160), (358, 6980), (698, 3580), (716, 3490), (895, 2792), (1396, 1790), (1432, 1745)]