138977840

素因数分解:

$2^4\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1753}}^1$

素因数の和:2757

約数の個数: 40

約数和(自身を含む): 323634048

約数和(自身を除く): 184656208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 991, 1753, 1982, 3506, 3964, 4955, 7012, 7928, 8765, 9910, 14024, 15856, 17530, 19820, 28048, 35060, 39640, 70120, 79280, 140240, 1737223, 3474446, 6948892, 8686115, 13897784, 17372230, 27795568, 34744460, 69488920, 138977840]

約数ペア:

[(1, 138977840), (2, 69488920), (4, 34744460), (5, 27795568), (8, 17372230), (10, 13897784), (16, 8686115), (20, 6948892), (40, 3474446), (80, 1737223), (991, 140240), (1753, 79280), (1982, 70120), (3506, 39640), (3964, 35060), (4955, 28048), (7012, 19820), (7928, 17530), (8765, 15856), (9910, 14024)]