489398840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{977}}^1\times {\mathrm{1789}}^1$

素因数の和:2784

約数の個数: 64

約数和(自身を含む): 1260446400

約数和(自身を除く): 771047560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 977, 1789, 1954, 3578, 3908, 4885, 6839, 7156, 7816, 8945, 9770, 12523, 13678, 14312, 17890, 19540, 25046, 27356, 34195, 35780, 39080, 50092, 54712, 62615, 68390, 71560, 100184, 125230, 136780, 250460, 273560, 500920, 1747853, 3495706, 6991412, 8739265, 12234971, 13982824, 17478530, 24469942, 34957060, 48939884, 61174855, 69914120, 97879768, 122349710, 244699420, 489398840]

約数ペア:

[(1, 489398840), (2, 244699420), (4, 122349710), (5, 97879768), (7, 69914120), (8, 61174855), (10, 48939884), (14, 34957060), (20, 24469942), (28, 17478530), (35, 13982824), (40, 12234971), (56, 8739265), (70, 6991412), (140, 3495706), (280, 1747853), (977, 500920), (1789, 273560), (1954, 250460), (3578, 136780), (3908, 125230), (4885, 100184), (6839, 71560), (7156, 68390), (7816, 62615), (8945, 54712), (9770, 50092), (12523, 39080), (13678, 35780), (14312, 34195), (17890, 27356), (19540, 25046)]