28103890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{165317}}^1$

素因数の和:165341

約数の個数: 16

約数和(自身を含む): 53563032

約数和(自身を除く): 25459142

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 165317, 330634, 826585, 1653170, 2810389, 5620778, 14051945, 28103890]

約数ペア:

[(1, 28103890), (2, 14051945), (5, 5620778), (10, 2810389), (17, 1653170), (34, 826585), (85, 330634), (170, 165317)]