28391340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2903}}^1$

素因数の和:3078

約数の個数: 48

約数和(自身を含む): 80011008

約数和(自身を除く): 51619668

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 163, 326, 489, 652, 815, 978, 1630, 1956, 2445, 2903, 3260, 4890, 5806, 8709, 9780, 11612, 14515, 17418, 29030, 34836, 43545, 58060, 87090, 174180, 473189, 946378, 1419567, 1892756, 2365945, 2839134, 4731890, 5678268, 7097835, 9463780, 14195670, 28391340]

約数ペア:

[(1, 28391340), (2, 14195670), (3, 9463780), (4, 7097835), (5, 5678268), (6, 4731890), (10, 2839134), (12, 2365945), (15, 1892756), (20, 1419567), (30, 946378), (60, 473189), (163, 174180), (326, 87090), (489, 58060), (652, 43545), (815, 34836), (978, 29030), (1630, 17418), (1956, 14515), (2445, 11612), (2903, 9780), (3260, 8709), (4890, 5806)]