251319481

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 319127040

約数和(自身を除く): 67807559

約数列:

[1, 7, 29, 47, 49, 53, 71, 203, 329, 371, 497, 1363, 1421, 1537, 2059, 2303, 2491, 2597, 3337, 3479, 3763, 9541, 10759, 14413, 17437, 23359, 26341, 66787, 72239, 75313, 96773, 100891, 109127, 122059, 163513, 176861, 184387, 505673, 677411, 763889, 1238027, 3539711, 4741877, 5128969, 5347223, 8666189, 35902783, 251319481]

約数ペア:

[(1, 251319481), (7, 35902783), (29, 8666189), (47, 5347223), (49, 5128969), (53, 4741877), (71, 3539711), (203, 1238027), (329, 763889), (371, 677411), (497, 505673), (1363, 184387), (1421, 176861), (1537, 163513), (2059, 122059), (2303, 109127), (2491, 100891), (2597, 96773), (3337, 75313), (3479, 72239), (3763, 66787), (9541, 26341), (10759, 23359), (14413, 17437)]