208045180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{4937}}^1$

素因数の和:5003

約数の個数: 72

約数和(自身を含む): 520149168

約数和(自身を除く): 312103988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 860, 980, 1204, 1505, 2107, 3010, 4214, 4937, 6020, 8428, 9874, 10535, 19748, 21070, 24685, 34559, 42140, 49370, 69118, 98740, 138236, 172795, 212291, 241913, 345590, 424582, 483826, 691180, 849164, 967652, 1061455, 1209565, 1486037, 2122910, 2419130, 2972074, 4245820, 4838260, 5944148, 7430185, 10402259, 14860370, 20804518, 29720740, 41609036, 52011295, 104022590, 208045180]

約数ペア:

[(1, 208045180), (2, 104022590), (4, 52011295), (5, 41609036), (7, 29720740), (10, 20804518), (14, 14860370), (20, 10402259), (28, 7430185), (35, 5944148), (43, 4838260), (49, 4245820), (70, 2972074), (86, 2419130), (98, 2122910), (140, 1486037), (172, 1209565), (196, 1061455), (215, 967652), (245, 849164), (301, 691180), (430, 483826), (490, 424582), (602, 345590), (860, 241913), (980, 212291), (1204, 172795), (1505, 138236), (2107, 98740), (3010, 69118), (4214, 49370), (4937, 42140), (6020, 34559), (8428, 24685), (9874, 21070), (10535, 19748)]