2564144920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1563503}}^1$

素因数の和:1563555

約数の個数: 32

約数和(自身を含む): 5910045120

約数和(自身を除く): 3345900200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1563503, 3127006, 6254012, 7817515, 12508024, 15635030, 31270060, 62540120, 64103623, 128207246, 256414492, 320518115, 512828984, 641036230, 1282072460, 2564144920]

約数ペア:

[(1, 2564144920), (2, 1282072460), (4, 641036230), (5, 512828984), (8, 320518115), (10, 256414492), (20, 128207246), (40, 64103623), (41, 62540120), (82, 31270060), (164, 15635030), (205, 12508024), (328, 7817515), (410, 6254012), (820, 3127006), (1640, 1563503)]