28405810

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{9829}}^1$

素因数の和:9870

約数の個数: 24

約数和(自身を含む): 54320580

約数和(自身を除く): 25914770

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 9829, 19658, 49145, 98290, 167093, 334186, 835465, 1670930, 2840581, 5681162, 14202905, 28405810]

約数ペア:

[(1, 28405810), (2, 14202905), (5, 5681162), (10, 2840581), (17, 1670930), (34, 835465), (85, 334186), (170, 167093), (289, 98290), (578, 49145), (1445, 19658), (2890, 9829)]