28783280

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2833}}^1$

素因数の和:2973

約数の個数: 40

約数和(自身を含む): 67471872

約数和(自身を除く): 38688592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 2833, 5080, 5666, 10160, 11332, 14165, 22664, 28330, 45328, 56660, 113320, 226640, 359791, 719582, 1439164, 1798955, 2878328, 3597910, 5756656, 7195820, 14391640, 28783280]

約数ペア:

[(1, 28783280), (2, 14391640), (4, 7195820), (5, 5756656), (8, 3597910), (10, 2878328), (16, 1798955), (20, 1439164), (40, 719582), (80, 359791), (127, 226640), (254, 113320), (508, 56660), (635, 45328), (1016, 28330), (1270, 22664), (2032, 14165), (2540, 11332), (2833, 10160), (5080, 5666)]