28257808

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{103889}}^1$

素因数の和:103914

約数の個数: 20

約数和(自身を含む): 57970620

約数和(自身を除く): 29712812

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 103889, 207778, 415556, 831112, 1662224, 1766113, 3532226, 7064452, 14128904, 28257808]

約数ペア:

[(1, 28257808), (2, 14128904), (4, 7064452), (8, 3532226), (16, 1766113), (17, 1662224), (34, 831112), (68, 415556), (136, 207778), (272, 103889)]