20589635

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 30614112

約数和(自身を除く): 10024477

約数列:

[1, 5, 11, 17, 19, 55, 61, 85, 95, 187, 209, 305, 323, 361, 671, 935, 1037, 1045, 1159, 1615, 1805, 3355, 3553, 3971, 5185, 5795, 6137, 11407, 12749, 17765, 19703, 19855, 22021, 30685, 57035, 63745, 67507, 98515, 110105, 216733, 242231, 337535, 374357, 1083665, 1211155, 1871785, 4117927, 20589635]

約数ペア:

[(1, 20589635), (5, 4117927), (11, 1871785), (17, 1211155), (19, 1083665), (55, 374357), (61, 337535), (85, 242231), (95, 216733), (187, 110105), (209, 98515), (305, 67507), (323, 63745), (361, 57035), (671, 30685), (935, 22021), (1037, 19855), (1045, 19703), (1159, 17765), (1615, 12749), (1805, 11407), (3355, 6137), (3553, 5795), (3971, 5185)]