199962040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{116257}}^1$

素因数の和:116311

約数の個数: 32

約数和(自身を含む): 460381680

約数和(自身を除く): 260419640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 116257, 232514, 465028, 581285, 930056, 1162570, 2325140, 4650280, 4999051, 9998102, 19996204, 24995255, 39992408, 49990510, 99981020, 199962040]

約数ペア:

[(1, 199962040), (2, 99981020), (4, 49990510), (5, 39992408), (8, 24995255), (10, 19996204), (20, 9998102), (40, 4999051), (43, 4650280), (86, 2325140), (172, 1162570), (215, 930056), (344, 581285), (430, 465028), (860, 232514), (1720, 116257)]