64781878

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2447}}^1$

素因数の和:2548

約数の個数: 32

約数和(自身を含む): 116563968

約数和(自身を除く): 51782090

約数列:

[1, 2, 7, 14, 31, 61, 62, 122, 217, 427, 434, 854, 1891, 2447, 3782, 4894, 13237, 17129, 26474, 34258, 75857, 149267, 151714, 298534, 530999, 1044869, 1061998, 2089738, 4627277, 9254554, 32390939, 64781878]

約数ペア:

[(1, 64781878), (2, 32390939), (7, 9254554), (14, 4627277), (31, 2089738), (61, 1061998), (62, 1044869), (122, 530999), (217, 298534), (427, 151714), (434, 149267), (854, 75857), (1891, 34258), (2447, 26474), (3782, 17129), (4894, 13237)]