128720368

素因数分解:

$2^4\times 7^1\times {\mathrm{709}}^1\times {\mathrm{1621}}^1$

素因数の和:2345

約数の個数: 40

約数和(自身を含む): 285601760

約数和(自身を除く): 156881392

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 709, 1418, 1621, 2836, 3242, 4963, 5672, 6484, 9926, 11344, 11347, 12968, 19852, 22694, 25936, 39704, 45388, 79408, 90776, 181552, 1149289, 2298578, 4597156, 8045023, 9194312, 16090046, 18388624, 32180092, 64360184, 128720368]

約数ペア:

[(1, 128720368), (2, 64360184), (4, 32180092), (7, 18388624), (8, 16090046), (14, 9194312), (16, 8045023), (28, 4597156), (56, 2298578), (112, 1149289), (709, 181552), (1418, 90776), (1621, 79408), (2836, 45388), (3242, 39704), (4963, 25936), (5672, 22694), (6484, 19852), (9926, 12968), (11344, 11347)]