28612280

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3631}}^1$

素因数の和:3839

約数の個数: 32

約数和(自身を含む): 64722240

約数和(自身を除く): 36109960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3631, 3940, 7262, 7880, 14524, 18155, 29048, 36310, 72620, 145240, 715307, 1430614, 2861228, 3576535, 5722456, 7153070, 14306140, 28612280]

約数ペア:

[(1, 28612280), (2, 14306140), (4, 7153070), (5, 5722456), (8, 3576535), (10, 2861228), (20, 1430614), (40, 715307), (197, 145240), (394, 72620), (788, 36310), (985, 29048), (1576, 18155), (1970, 14524), (3631, 7880), (3940, 7262)]