28826515

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 38304000

約数和(自身を除く): 9477485

約数列:

[1, 5, 19, 37, 59, 95, 139, 185, 295, 695, 703, 1121, 2183, 2641, 3515, 5143, 5605, 8201, 10915, 13205, 25715, 41005, 41477, 97717, 155819, 207385, 303437, 488585, 779095, 1517185, 5765303, 28826515]

約数ペア:

[(1, 28826515), (5, 5765303), (19, 1517185), (37, 779095), (59, 488585), (95, 303437), (139, 207385), (185, 155819), (295, 97717), (695, 41477), (703, 41005), (1121, 25715), (2183, 13205), (2641, 10915), (3515, 8201), (5143, 5605)]