180240080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{79}}^2$

素因数の和:209

約数の個数: 90

約数和(自身を含む): 447943986

約数和(自身を除く): 267703906

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 79, 80, 95, 152, 158, 190, 304, 316, 361, 380, 395, 632, 722, 760, 790, 1264, 1444, 1501, 1520, 1580, 1805, 2888, 3002, 3160, 3610, 5776, 6004, 6241, 6320, 7220, 7505, 12008, 12482, 14440, 15010, 24016, 24964, 28519, 28880, 30020, 31205, 49928, 57038, 60040, 62410, 99856, 114076, 118579, 120080, 124820, 142595, 228152, 237158, 249640, 285190, 456304, 474316, 499280, 570380, 592895, 948632, 1140760, 1185790, 1897264, 2253001, 2281520, 2371580, 4506002, 4743160, 9012004, 9486320, 11265005, 18024008, 22530010, 36048016, 45060020, 90120040, 180240080]

約数ペア:

[(1, 180240080), (2, 90120040), (4, 45060020), (5, 36048016), (8, 22530010), (10, 18024008), (16, 11265005), (19, 9486320), (20, 9012004), (38, 4743160), (40, 4506002), (76, 2371580), (79, 2281520), (80, 2253001), (95, 1897264), (152, 1185790), (158, 1140760), (190, 948632), (304, 592895), (316, 570380), (361, 499280), (380, 474316), (395, 456304), (632, 285190), (722, 249640), (760, 237158), (790, 228152), (1264, 142595), (1444, 124820), (1501, 120080), (1520, 118579), (1580, 114076), (1805, 99856), (2888, 62410), (3002, 60040), (3160, 57038), (3610, 49928), (5776, 31205), (6004, 30020), (6241, 28880), (6320, 28519), (7220, 24964), (7505, 24016), (12008, 15010), (12482, 14440)]