28504240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20959}}^1$

素因数の和:20989

約数の個数: 40

約数和(自身を含む): 70174080

約数和(自身を除く): 41669840

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 20959, 41918, 83836, 104795, 167672, 209590, 335344, 356303, 419180, 712606, 838360, 1425212, 1676720, 1781515, 2850424, 3563030, 5700848, 7126060, 14252120, 28504240]

約数ペア:

[(1, 28504240), (2, 14252120), (4, 7126060), (5, 5700848), (8, 3563030), (10, 2850424), (16, 1781515), (17, 1676720), (20, 1425212), (34, 838360), (40, 712606), (68, 419180), (80, 356303), (85, 335344), (136, 209590), (170, 167672), (272, 104795), (340, 83836), (680, 41918), (1360, 20959)]