166370440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{491}}^1$

素因数の和:742

約数の個数: 64

約数和(自身を含む): 385767360

約数和(自身を除く): 219396920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 197, 215, 344, 394, 430, 491, 788, 860, 982, 985, 1576, 1720, 1964, 1970, 2455, 3928, 3940, 4910, 7880, 8471, 9820, 16942, 19640, 21113, 33884, 42226, 42355, 67768, 84452, 84710, 96727, 105565, 168904, 169420, 193454, 211130, 338840, 386908, 422260, 483635, 773816, 844520, 967270, 1934540, 3869080, 4159261, 8318522, 16637044, 20796305, 33274088, 41592610, 83185220, 166370440]

約数ペア:

[(1, 166370440), (2, 83185220), (4, 41592610), (5, 33274088), (8, 20796305), (10, 16637044), (20, 8318522), (40, 4159261), (43, 3869080), (86, 1934540), (172, 967270), (197, 844520), (215, 773816), (344, 483635), (394, 422260), (430, 386908), (491, 338840), (788, 211130), (860, 193454), (982, 169420), (985, 168904), (1576, 105565), (1720, 96727), (1964, 84710), (1970, 84452), (2455, 67768), (3928, 42355), (3940, 42226), (4910, 33884), (7880, 21113), (8471, 19640), (9820, 16942)]