257440736

素因数分解:

$2^5\times 7^1\times {\mathrm{709}}^1\times {\mathrm{1621}}^1$

素因数の和:2347

約数の個数: 48

約数和(自身を含む): 580416480

約数和(自身を除く): 322975744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 709, 1418, 1621, 2836, 3242, 4963, 5672, 6484, 9926, 11344, 11347, 12968, 19852, 22688, 22694, 25936, 39704, 45388, 51872, 79408, 90776, 158816, 181552, 363104, 1149289, 2298578, 4597156, 8045023, 9194312, 16090046, 18388624, 32180092, 36777248, 64360184, 128720368, 257440736]

約数ペア:

[(1, 257440736), (2, 128720368), (4, 64360184), (7, 36777248), (8, 32180092), (14, 18388624), (16, 16090046), (28, 9194312), (32, 8045023), (56, 4597156), (112, 2298578), (224, 1149289), (709, 363104), (1418, 181552), (1621, 158816), (2836, 90776), (3242, 79408), (4963, 51872), (5672, 45388), (6484, 39704), (9926, 25936), (11344, 22694), (11347, 22688), (12968, 19852)]