65218640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{401}}^1$

素因数の和:540

約数の個数: 80

約数和(自身を含む): 161507520

約数和(自身を除く): 96288880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 107, 152, 190, 214, 304, 380, 401, 428, 535, 760, 802, 856, 1070, 1520, 1604, 1712, 2005, 2033, 2140, 3208, 4010, 4066, 4280, 6416, 7619, 8020, 8132, 8560, 10165, 15238, 16040, 16264, 20330, 30476, 32080, 32528, 38095, 40660, 42907, 60952, 76190, 81320, 85814, 121904, 152380, 162640, 171628, 214535, 304760, 343256, 429070, 609520, 686512, 815233, 858140, 1630466, 1716280, 3260932, 3432560, 4076165, 6521864, 8152330, 13043728, 16304660, 32609320, 65218640]

約数ペア:

[(1, 65218640), (2, 32609320), (4, 16304660), (5, 13043728), (8, 8152330), (10, 6521864), (16, 4076165), (19, 3432560), (20, 3260932), (38, 1716280), (40, 1630466), (76, 858140), (80, 815233), (95, 686512), (107, 609520), (152, 429070), (190, 343256), (214, 304760), (304, 214535), (380, 171628), (401, 162640), (428, 152380), (535, 121904), (760, 85814), (802, 81320), (856, 76190), (1070, 60952), (1520, 42907), (1604, 40660), (1712, 38095), (2005, 32528), (2033, 32080), (2140, 30476), (3208, 20330), (4010, 16264), (4066, 16040), (4280, 15238), (6416, 10165), (7619, 8560), (8020, 8132)]