1969895

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:286

約数の個数: 16

約数和(自身を含む): 2488320

約数和(自身を除く): 518425

約数列:

[1, 5, 31, 71, 155, 179, 355, 895, 2201, 5549, 11005, 12709, 27745, 63545, 393979, 1969895]

約数ペア:

[(1, 1969895), (5, 393979), (31, 63545), (71, 27745), (155, 12709), (179, 11005), (355, 5549), (895, 2201)]