261765712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{613}}^1\times {\mathrm{2053}}^1$

素因数の和:2687

約数の個数: 40

約数和(自身を含む): 547341704

約数和(自身を除く): 285575992

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 613, 1226, 2053, 2452, 4106, 4904, 7969, 8212, 9808, 15938, 16424, 26689, 31876, 32848, 53378, 63752, 106756, 127504, 213512, 427024, 1258489, 2516978, 5033956, 10067912, 16360357, 20135824, 32720714, 65441428, 130882856, 261765712]

約数ペア:

[(1, 261765712), (2, 130882856), (4, 65441428), (8, 32720714), (13, 20135824), (16, 16360357), (26, 10067912), (52, 5033956), (104, 2516978), (208, 1258489), (613, 427024), (1226, 213512), (2053, 127504), (2452, 106756), (4106, 63752), (4904, 53378), (7969, 32848), (8212, 31876), (9808, 26689), (15938, 16424)]