2556760

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1559}}^1$

素因数の和:1611

約数の個数: 32

約数和(自身を含む): 5896800

約数和(自身を除く): 3340040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1559, 1640, 3118, 6236, 7795, 12472, 15590, 31180, 62360, 63919, 127838, 255676, 319595, 511352, 639190, 1278380, 2556760]

約数ペア:

[(1, 2556760), (2, 1278380), (4, 639190), (5, 511352), (8, 319595), (10, 255676), (20, 127838), (40, 63919), (41, 62360), (82, 31180), (164, 15590), (205, 12472), (328, 7795), (410, 6236), (820, 3118), (1559, 1640)]