20257496

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 46464000

約数和(自身を除く): 26206504

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 79, 133, 152, 158, 241, 266, 316, 482, 532, 553, 632, 964, 1064, 1106, 1501, 1687, 1928, 2212, 3002, 3374, 4424, 4579, 6004, 6748, 9158, 10507, 12008, 13496, 18316, 19039, 21014, 32053, 36632, 38078, 42028, 64106, 76156, 84056, 128212, 133273, 152312, 256424, 266546, 361741, 533092, 723482, 1066184, 1446964, 2532187, 2893928, 5064374, 10128748, 20257496]

約数ペア:

[(1, 20257496), (2, 10128748), (4, 5064374), (7, 2893928), (8, 2532187), (14, 1446964), (19, 1066184), (28, 723482), (38, 533092), (56, 361741), (76, 266546), (79, 256424), (133, 152312), (152, 133273), (158, 128212), (241, 84056), (266, 76156), (316, 64106), (482, 42028), (532, 38078), (553, 36632), (632, 32053), (964, 21014), (1064, 19039), (1106, 18316), (1501, 13496), (1687, 12008), (1928, 10507), (2212, 9158), (3002, 6748), (3374, 6004), (4424, 4579)]