81028375

素因数分解:

$5^3\times {\mathrm{17}}^2\times {\mathrm{2243}}^1$

素因数の和:2292

約数の個数: 24

約数和(自身を含む): 107469648

約数和(自身を除く): 26441273

約数列:

[1, 5, 17, 25, 85, 125, 289, 425, 1445, 2125, 2243, 7225, 11215, 36125, 38131, 56075, 190655, 280375, 648227, 953275, 3241135, 4766375, 16205675, 81028375]

約数ペア:

[(1, 81028375), (5, 16205675), (17, 4766375), (25, 3241135), (85, 953275), (125, 648227), (289, 280375), (425, 190655), (1445, 56075), (2125, 38131), (2243, 36125), (7225, 11215)]