289381628180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1531}}^1\times {\mathrm{133109}}^1$

素因数の和:134720

約数の個数: 48

約数和(自身を含む): 616667748480

約数和(自身を除く): 327286120300

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1531, 3062, 6124, 7655, 15310, 30620, 108701, 133109, 217402, 266218, 434804, 532436, 543505, 665545, 1087010, 1331090, 2174020, 2662180, 9450739, 18901478, 37802956, 47253695, 94507390, 189014780, 203789879, 407579758, 815159516, 1018949395, 2037898790, 4075797580, 14469081409, 28938162818, 57876325636, 72345407045, 144690814090, 289381628180]

約数ペア:

[(1, 289381628180), (2, 144690814090), (4, 72345407045), (5, 57876325636), (10, 28938162818), (20, 14469081409), (71, 4075797580), (142, 2037898790), (284, 1018949395), (355, 815159516), (710, 407579758), (1420, 203789879), (1531, 189014780), (3062, 94507390), (6124, 47253695), (7655, 37802956), (15310, 18901478), (30620, 9450739), (108701, 2662180), (133109, 2174020), (217402, 1331090), (266218, 1087010), (434804, 665545), (532436, 543505)]