87861851

素因数分解:

$7^3\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:145

約数の個数: 48

約数和(自身を含む): 118104000

約数和(自身を除く): 30242149

約数列:

[1, 7, 11, 29, 49, 73, 77, 121, 203, 319, 343, 511, 539, 803, 847, 1421, 2117, 2233, 3509, 3577, 3773, 5621, 5929, 8833, 9947, 14819, 15631, 23287, 24563, 25039, 39347, 41503, 61831, 103733, 109417, 163009, 171941, 256157, 275429, 432817, 726131, 1141063, 1203587, 1793099, 3029719, 7987441, 12551693, 87861851]

約数ペア:

[(1, 87861851), (7, 12551693), (11, 7987441), (29, 3029719), (49, 1793099), (73, 1203587), (77, 1141063), (121, 726131), (203, 432817), (319, 275429), (343, 256157), (511, 171941), (539, 163009), (803, 109417), (847, 103733), (1421, 61831), (2117, 41503), (2233, 39347), (3509, 25039), (3577, 24563), (3773, 23287), (5621, 15631), (5929, 14819), (8833, 9947)]