21270360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1129}}^1$

素因数の和:1300

約数の個数: 64

約数和(自身を含む): 64274400

約数和(自身を除く): 43004040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 471, 628, 785, 942, 1129, 1256, 1570, 1884, 2258, 2355, 3140, 3387, 3768, 4516, 4710, 5645, 6280, 6774, 9032, 9420, 11290, 13548, 16935, 18840, 22580, 27096, 33870, 45160, 67740, 135480, 177253, 354506, 531759, 709012, 886265, 1063518, 1418024, 1772530, 2127036, 2658795, 3545060, 4254072, 5317590, 7090120, 10635180, 21270360]

約数ペア:

[(1, 21270360), (2, 10635180), (3, 7090120), (4, 5317590), (5, 4254072), (6, 3545060), (8, 2658795), (10, 2127036), (12, 1772530), (15, 1418024), (20, 1063518), (24, 886265), (30, 709012), (40, 531759), (60, 354506), (120, 177253), (157, 135480), (314, 67740), (471, 45160), (628, 33870), (785, 27096), (942, 22580), (1129, 18840), (1256, 16935), (1570, 13548), (1884, 11290), (2258, 9420), (2355, 9032), (3140, 6774), (3387, 6280), (3768, 5645), (4516, 4710)]