280489953

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 420396480

約数和(自身を除く): 139906527

約数列:

[1, 3, 17, 31, 51, 59, 93, 97, 177, 291, 527, 961, 1003, 1581, 1649, 1829, 2883, 3007, 3009, 4947, 5487, 5723, 9021, 16337, 17169, 31093, 49011, 51119, 56699, 93217, 93279, 97291, 153357, 170097, 177413, 279651, 291873, 532239, 963883, 1584689, 2891649, 3016021, 4754067, 5499803, 9048063, 16499409, 93496651, 280489953]

約数ペア:

[(1, 280489953), (3, 93496651), (17, 16499409), (31, 9048063), (51, 5499803), (59, 4754067), (93, 3016021), (97, 2891649), (177, 1584689), (291, 963883), (527, 532239), (961, 291873), (1003, 279651), (1581, 177413), (1649, 170097), (1829, 153357), (2883, 97291), (3007, 93279), (3009, 93217), (4947, 56699), (5487, 51119), (5723, 49011), (9021, 31093), (16337, 17169)]