255638537

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1213}}^1$

素因数の和:1278

約数の個数: 48

約数和(自身を含む): 358722432

約数和(自身を除く): 103083895

約数列:

[1, 7, 11, 17, 23, 49, 77, 119, 161, 187, 253, 391, 539, 833, 1127, 1213, 1309, 1771, 2737, 4301, 8491, 9163, 12397, 13343, 19159, 20621, 27899, 30107, 59437, 93401, 144347, 195293, 210749, 226831, 306889, 474283, 653807, 1010429, 1367051, 1587817, 2148223, 3319981, 5217113, 11114719, 15037561, 23239867, 36519791, 255638537]

約数ペア:

[(1, 255638537), (7, 36519791), (11, 23239867), (17, 15037561), (23, 11114719), (49, 5217113), (77, 3319981), (119, 2148223), (161, 1587817), (187, 1367051), (253, 1010429), (391, 653807), (539, 474283), (833, 306889), (1127, 226831), (1213, 210749), (1309, 195293), (1771, 144347), (2737, 93401), (4301, 59437), (8491, 30107), (9163, 27899), (12397, 20621), (13343, 19159)]