640938984

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{29123}}^1$

素因数の和:29270

約数の個数: 64

約数和(自身を含む): 1845296640

約数和(自身を除く): 1204357656

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 131, 168, 262, 393, 524, 786, 917, 1048, 1572, 1834, 2751, 3144, 3668, 5502, 7336, 11004, 22008, 29123, 58246, 87369, 116492, 174738, 203861, 232984, 349476, 407722, 611583, 698952, 815444, 1223166, 1630888, 2446332, 3815113, 4892664, 7630226, 11445339, 15260452, 22890678, 26705791, 30520904, 45781356, 53411582, 80117373, 91562712, 106823164, 160234746, 213646328, 320469492, 640938984]

約数ペア:

[(1, 640938984), (2, 320469492), (3, 213646328), (4, 160234746), (6, 106823164), (7, 91562712), (8, 80117373), (12, 53411582), (14, 45781356), (21, 30520904), (24, 26705791), (28, 22890678), (42, 15260452), (56, 11445339), (84, 7630226), (131, 4892664), (168, 3815113), (262, 2446332), (393, 1630888), (524, 1223166), (786, 815444), (917, 698952), (1048, 611583), (1572, 407722), (1834, 349476), (2751, 232984), (3144, 203861), (3668, 174738), (5502, 116492), (7336, 87369), (11004, 58246), (22008, 29123)]