28468840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{797}}^1$

素因数の和:874

約数の個数: 64

約数和(自身を含む): 68947200

約数和(自身を除く): 40478360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 760, 797, 893, 940, 1594, 1786, 1880, 3188, 3572, 3985, 4465, 6376, 7144, 7970, 8930, 15143, 15940, 17860, 30286, 31880, 35720, 37459, 60572, 74918, 75715, 121144, 149836, 151430, 187295, 299672, 302860, 374590, 605720, 711721, 749180, 1423442, 1498360, 2846884, 3558605, 5693768, 7117210, 14234420, 28468840]

約数ペア:

[(1, 28468840), (2, 14234420), (4, 7117210), (5, 5693768), (8, 3558605), (10, 2846884), (19, 1498360), (20, 1423442), (38, 749180), (40, 711721), (47, 605720), (76, 374590), (94, 302860), (95, 299672), (152, 187295), (188, 151430), (190, 149836), (235, 121144), (376, 75715), (380, 74918), (470, 60572), (760, 37459), (797, 35720), (893, 31880), (940, 30286), (1594, 17860), (1786, 15940), (1880, 15143), (3188, 8930), (3572, 7970), (3985, 7144), (4465, 6376)]