28042760

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{2909}}^1$

素因数の和:3161

約数の個数: 32

約数和(自身を含む): 63379800

約数和(自身を除く): 35337040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 2909, 4820, 5818, 9640, 11636, 14545, 23272, 29090, 58180, 116360, 701069, 1402138, 2804276, 3505345, 5608552, 7010690, 14021380, 28042760]

約数ペア:

[(1, 28042760), (2, 14021380), (4, 7010690), (5, 5608552), (8, 3505345), (10, 2804276), (20, 1402138), (40, 701069), (241, 116360), (482, 58180), (964, 29090), (1205, 23272), (1928, 14545), (2410, 11636), (2909, 9640), (4820, 5818)]