256162556

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{491}}^1$

素因数の和:714

約数の個数: 48

約数和(自身を含む): 493731840

約数和(自身を除く): 237569284

約数列:

[1, 2, 4, 13, 26, 52, 79, 127, 158, 254, 316, 491, 508, 982, 1027, 1651, 1964, 2054, 3302, 4108, 6383, 6604, 10033, 12766, 20066, 25532, 38789, 40132, 62357, 77578, 124714, 130429, 155156, 249428, 260858, 504257, 521716, 810641, 1008514, 1621282, 2017028, 3242564, 4926203, 9852406, 19704812, 64040639, 128081278, 256162556]

約数ペア:

[(1, 256162556), (2, 128081278), (4, 64040639), (13, 19704812), (26, 9852406), (52, 4926203), (79, 3242564), (127, 2017028), (158, 1621282), (254, 1008514), (316, 810641), (491, 521716), (508, 504257), (982, 260858), (1027, 249428), (1651, 155156), (1964, 130429), (2054, 124714), (3302, 77578), (4108, 62357), (6383, 40132), (6604, 38789), (10033, 25532), (12766, 20066)]