1640772280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{42773}}^1$

素因数の和:42928

約数の個数: 64

約数和(自身を含む): 4250024640

約数和(自身を除く): 2609252360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 137, 140, 274, 280, 548, 685, 959, 1096, 1370, 1918, 2740, 3836, 4795, 5480, 7672, 9590, 19180, 38360, 42773, 85546, 171092, 213865, 299411, 342184, 427730, 598822, 855460, 1197644, 1497055, 1710920, 2395288, 2994110, 5859901, 5988220, 11719802, 11976440, 23439604, 29299505, 41019307, 46879208, 58599010, 82038614, 117198020, 164077228, 205096535, 234396040, 328154456, 410193070, 820386140, 1640772280]

約数ペア:

[(1, 1640772280), (2, 820386140), (4, 410193070), (5, 328154456), (7, 234396040), (8, 205096535), (10, 164077228), (14, 117198020), (20, 82038614), (28, 58599010), (35, 46879208), (40, 41019307), (56, 29299505), (70, 23439604), (137, 11976440), (140, 11719802), (274, 5988220), (280, 5859901), (548, 2994110), (685, 2395288), (959, 1710920), (1096, 1497055), (1370, 1197644), (1918, 855460), (2740, 598822), (3836, 427730), (4795, 342184), (5480, 299411), (7672, 213865), (9590, 171092), (19180, 85546), (38360, 42773)]