207898120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{120871}}^1$

素因数の和:120925

約数の個数: 32

約数和(自身を含む): 478653120

約数和(自身を除く): 270755000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 120871, 241742, 483484, 604355, 966968, 1208710, 2417420, 4834840, 5197453, 10394906, 20789812, 25987265, 41579624, 51974530, 103949060, 207898120]

約数ペア:

[(1, 207898120), (2, 103949060), (4, 51974530), (5, 41579624), (8, 25987265), (10, 20789812), (20, 10394906), (40, 5197453), (43, 4834840), (86, 2417420), (172, 1208710), (215, 966968), (344, 604355), (430, 483484), (860, 241742), (1720, 120871)]