280984179

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2719}}^1$

素因数の和:2792

約数の個数: 48

約数和(自身を含む): 471321600

約数和(自身を除く): 190337421

約数列:

[1, 3, 7, 19, 21, 37, 49, 57, 111, 133, 147, 259, 399, 703, 777, 931, 1813, 2109, 2719, 2793, 4921, 5439, 8157, 14763, 19033, 34447, 51661, 57099, 100603, 103341, 133231, 154983, 301809, 361627, 399693, 704221, 1084881, 1911457, 2112663, 2531389, 4929547, 5734371, 7594167, 13380199, 14788641, 40140597, 93661393, 280984179]

約数ペア:

[(1, 280984179), (3, 93661393), (7, 40140597), (19, 14788641), (21, 13380199), (37, 7594167), (49, 5734371), (57, 4929547), (111, 2531389), (133, 2112663), (147, 1911457), (259, 1084881), (399, 704221), (703, 399693), (777, 361627), (931, 301809), (1813, 154983), (2109, 133231), (2719, 103341), (2793, 100603), (4921, 57099), (5439, 51661), (8157, 34447), (14763, 19033)]