87897520

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{241}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 211736448

約数和(自身を除く): 123838928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 97, 188, 194, 235, 241, 376, 388, 470, 482, 485, 752, 776, 940, 964, 970, 1205, 1552, 1880, 1928, 1940, 2410, 3760, 3856, 3880, 4559, 4820, 7760, 9118, 9640, 11327, 18236, 19280, 22654, 22795, 23377, 36472, 45308, 45590, 46754, 56635, 72944, 90616, 91180, 93508, 113270, 116885, 181232, 182360, 187016, 226540, 233770, 364720, 374032, 453080, 467540, 906160, 935080, 1098719, 1870160, 2197438, 4394876, 5493595, 8789752, 10987190, 17579504, 21974380, 43948760, 87897520]

約数ペア:

[(1, 87897520), (2, 43948760), (4, 21974380), (5, 17579504), (8, 10987190), (10, 8789752), (16, 5493595), (20, 4394876), (40, 2197438), (47, 1870160), (80, 1098719), (94, 935080), (97, 906160), (188, 467540), (194, 453080), (235, 374032), (241, 364720), (376, 233770), (388, 226540), (470, 187016), (482, 182360), (485, 181232), (752, 116885), (776, 113270), (940, 93508), (964, 91180), (970, 90616), (1205, 72944), (1552, 56635), (1880, 46754), (1928, 45590), (1940, 45308), (2410, 36472), (3760, 23377), (3856, 22795), (3880, 22654), (4559, 19280), (4820, 18236), (7760, 11327), (9118, 9640)]