28278778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{179}}^1$

素因数の和:402

約数の個数: 32

約数和(自身を含む): 47900160

約数和(自身を除く): 19621382

約数列:

[1, 2, 11, 22, 43, 86, 167, 179, 334, 358, 473, 946, 1837, 1969, 3674, 3938, 7181, 7697, 14362, 15394, 29893, 59786, 78991, 84667, 157982, 169334, 328823, 657646, 1285399, 2570798, 14139389, 28278778]

約数ペア:

[(1, 28278778), (2, 14139389), (11, 2570798), (22, 1285399), (43, 657646), (86, 328823), (167, 169334), (179, 157982), (334, 84667), (358, 78991), (473, 59786), (946, 29893), (1837, 15394), (1969, 14362), (3674, 7697), (3938, 7181)]