83185220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{491}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 180024768

約数和(自身を除く): 96839548

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 197, 215, 394, 430, 491, 788, 860, 982, 985, 1964, 1970, 2455, 3940, 4910, 8471, 9820, 16942, 21113, 33884, 42226, 42355, 84452, 84710, 96727, 105565, 169420, 193454, 211130, 386908, 422260, 483635, 967270, 1934540, 4159261, 8318522, 16637044, 20796305, 41592610, 83185220]

約数ペア:

[(1, 83185220), (2, 41592610), (4, 20796305), (5, 16637044), (10, 8318522), (20, 4159261), (43, 1934540), (86, 967270), (172, 483635), (197, 422260), (215, 386908), (394, 211130), (430, 193454), (491, 169420), (788, 105565), (860, 96727), (982, 84710), (985, 84452), (1964, 42355), (1970, 42226), (2455, 33884), (3940, 21113), (4910, 16942), (8471, 9820)]