2181567185

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{643}}^1$

素因数の和:798

約数の個数: 64

約数和(自身を含む): 3204956160

約数和(自身を除く): 1023388975

約数列:

[1, 5, 7, 31, 35, 53, 59, 155, 217, 265, 295, 371, 413, 643, 1085, 1643, 1829, 1855, 2065, 3127, 3215, 4501, 8215, 9145, 11501, 12803, 15635, 19933, 21889, 22505, 34079, 37937, 57505, 64015, 96937, 99665, 109445, 139531, 170395, 189685, 238553, 265559, 484685, 678559, 697655, 1056449, 1176047, 1192765, 1327795, 2010661, 3392795, 5282245, 5880235, 7395143, 8232329, 10053305, 14074627, 36975715, 41161645, 62330491, 70373135, 311652455, 436313437, 2181567185]

約数ペア:

[(1, 2181567185), (5, 436313437), (7, 311652455), (31, 70373135), (35, 62330491), (53, 41161645), (59, 36975715), (155, 14074627), (217, 10053305), (265, 8232329), (295, 7395143), (371, 5880235), (413, 5282245), (643, 3392795), (1085, 2010661), (1643, 1327795), (1829, 1192765), (1855, 1176047), (2065, 1056449), (3127, 697655), (3215, 678559), (4501, 484685), (8215, 265559), (9145, 238553), (11501, 189685), (12803, 170395), (15635, 139531), (19933, 109445), (21889, 99665), (22505, 96937), (34079, 64015), (37937, 57505)]