68656480

素因数分解:

$2^5\times 5^1\times {\mathrm{433}}^1\times {\mathrm{991}}^1$

素因数の和:1439

約数の個数: 48

約数和(自身を含む): 162739584

約数和(自身を除く): 94083104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 433, 866, 991, 1732, 1982, 2165, 3464, 3964, 4330, 4955, 6928, 7928, 8660, 9910, 13856, 15856, 17320, 19820, 31712, 34640, 39640, 69280, 79280, 158560, 429103, 858206, 1716412, 2145515, 3432824, 4291030, 6865648, 8582060, 13731296, 17164120, 34328240, 68656480]

約数ペア:

[(1, 68656480), (2, 34328240), (4, 17164120), (5, 13731296), (8, 8582060), (10, 6865648), (16, 4291030), (20, 3432824), (32, 2145515), (40, 1716412), (80, 858206), (160, 429103), (433, 158560), (866, 79280), (991, 69280), (1732, 39640), (1982, 34640), (2165, 31712), (3464, 19820), (3964, 17320), (4330, 15856), (4955, 13856), (6928, 9910), (7928, 8660)]