19875265

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{419}}^1$

素因数の和:656

約数の個数: 16

約数和(自身を含む): 24494400

約数和(自身を除く): 4619135

約数列:

[1, 5, 53, 179, 265, 419, 895, 2095, 9487, 22207, 47435, 75001, 111035, 375005, 3975053, 19875265]

約数ペア:

[(1, 19875265), (5, 3975053), (53, 375005), (179, 111035), (265, 75001), (419, 47435), (895, 22207), (2095, 9487)]