20455295

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{2879}}^1$

素因数の和:2927

約数の個数: 24

約数和(自身を含む): 29548800

約数和(自身を除く): 9093505

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 1015, 1421, 2879, 7105, 14395, 20153, 83491, 100765, 141071, 417455, 584437, 705355, 2922185, 4091059, 20455295]

約数ペア:

[(1, 20455295), (5, 4091059), (7, 2922185), (29, 705355), (35, 584437), (49, 417455), (145, 141071), (203, 100765), (245, 83491), (1015, 20153), (1421, 14395), (2879, 7105)]