51958865

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 76826880

約数和(自身を除く): 24868015

約数列:

[1, 5, 7, 29, 35, 49, 71, 103, 145, 203, 245, 355, 497, 515, 721, 1015, 1421, 2059, 2485, 2987, 3479, 3605, 5047, 7105, 7313, 10295, 14413, 14935, 17395, 20909, 25235, 36565, 51191, 72065, 100891, 104545, 146363, 212077, 255955, 358337, 504455, 731815, 1060385, 1484539, 1791685, 7422695, 10391773, 51958865]

約数ペア:

[(1, 51958865), (5, 10391773), (7, 7422695), (29, 1791685), (35, 1484539), (49, 1060385), (71, 731815), (103, 504455), (145, 358337), (203, 255955), (245, 212077), (355, 146363), (497, 104545), (515, 100891), (721, 72065), (1015, 51191), (1421, 36565), (2059, 25235), (2485, 20909), (2987, 17395), (3479, 14935), (3605, 14413), (5047, 10295), (7105, 7313)]