290291211

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2251}}^1$

素因数の和:2376

約数の個数: 48

約数和(自身を含む): 505889280

約数和(自身を除く): 215598069

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 89, 161, 207, 267, 483, 623, 801, 1449, 1869, 2047, 2251, 5607, 6141, 6753, 14329, 15757, 18423, 20259, 42987, 47271, 51773, 128961, 141813, 155319, 200339, 362411, 465957, 601017, 1087233, 1402373, 1803051, 3261699, 4207119, 4607797, 12621357, 13823391, 32254579, 41470173, 96763737, 290291211]

約数ペア:

[(1, 290291211), (3, 96763737), (7, 41470173), (9, 32254579), (21, 13823391), (23, 12621357), (63, 4607797), (69, 4207119), (89, 3261699), (161, 1803051), (207, 1402373), (267, 1087233), (483, 601017), (623, 465957), (801, 362411), (1449, 200339), (1869, 155319), (2047, 141813), (2251, 128961), (5607, 51773), (6141, 47271), (6753, 42987), (14329, 20259), (15757, 18423)]