261297738

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2341}}^1$

素因数の和:2421

約数の個数: 80

約数和(自身を含む): 642710376

約数和(自身を除く): 381412638

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 53, 54, 78, 81, 106, 117, 159, 162, 234, 318, 351, 477, 689, 702, 954, 1053, 1378, 1431, 2067, 2106, 2341, 2862, 4134, 4293, 4682, 6201, 7023, 8586, 12402, 14046, 18603, 21069, 30433, 37206, 42138, 55809, 60866, 63207, 91299, 111618, 124073, 126414, 182598, 189621, 248146, 273897, 372219, 379242, 547794, 744438, 821691, 1116657, 1612949, 1643382, 2233314, 2465073, 3225898, 3349971, 4838847, 4930146, 6699942, 9677694, 10049913, 14516541, 20099826, 29033082, 43549623, 87099246, 130648869, 261297738]

約数ペア:

[(1, 261297738), (2, 130648869), (3, 87099246), (6, 43549623), (9, 29033082), (13, 20099826), (18, 14516541), (26, 10049913), (27, 9677694), (39, 6699942), (53, 4930146), (54, 4838847), (78, 3349971), (81, 3225898), (106, 2465073), (117, 2233314), (159, 1643382), (162, 1612949), (234, 1116657), (318, 821691), (351, 744438), (477, 547794), (689, 379242), (702, 372219), (954, 273897), (1053, 248146), (1378, 189621), (1431, 182598), (2067, 126414), (2106, 124073), (2341, 111618), (2862, 91299), (4134, 63207), (4293, 60866), (4682, 55809), (6201, 42138), (7023, 37206), (8586, 30433), (12402, 21069), (14046, 18603)]