217758825

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1451}}^1$

素因数の和:1519

約数の個数: 72

約数和(自身を含む): 421312320

約数和(自身を除く): 203553495

約数列:

[1, 3, 5, 9, 15, 23, 25, 29, 45, 69, 75, 87, 115, 145, 207, 225, 261, 345, 435, 575, 667, 725, 1035, 1305, 1451, 1725, 2001, 2175, 3335, 4353, 5175, 6003, 6525, 7255, 10005, 13059, 16675, 21765, 30015, 33373, 36275, 42079, 50025, 65295, 100119, 108825, 126237, 150075, 166865, 210395, 300357, 326475, 378711, 500595, 631185, 834325, 967817, 1051975, 1501785, 1893555, 2502975, 2903451, 3155925, 4839085, 7508925, 8710353, 9467775, 14517255, 24195425, 43551765, 72586275, 217758825]

約数ペア:

[(1, 217758825), (3, 72586275), (5, 43551765), (9, 24195425), (15, 14517255), (23, 9467775), (25, 8710353), (29, 7508925), (45, 4839085), (69, 3155925), (75, 2903451), (87, 2502975), (115, 1893555), (145, 1501785), (207, 1051975), (225, 967817), (261, 834325), (345, 631185), (435, 500595), (575, 378711), (667, 326475), (725, 300357), (1035, 210395), (1305, 166865), (1451, 150075), (1725, 126237), (2001, 108825), (2175, 100119), (3335, 65295), (4353, 50025), (5175, 42079), (6003, 36275), (6525, 33373), (7255, 30015), (10005, 21765), (13059, 16675)]