20218018408

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2341}}^1\times {\mathrm{8117}}^1$

素因数の和:10490

約数の個数: 64

約数和(自身を含む): 45629654400

約数和(自身を除く): 25411635992

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 2341, 4682, 8117, 9364, 16234, 16387, 18728, 32468, 32774, 44479, 56819, 64936, 65548, 88958, 113638, 131096, 154223, 177916, 227276, 308446, 311353, 355832, 454552, 616892, 622706, 1079561, 1233784, 1245412, 2159122, 2490824, 4318244, 8636488, 19001897, 38003794, 76007588, 133013279, 152015176, 266026558, 361036043, 532053116, 722072086, 1064106232, 1444144172, 2527252301, 2888288344, 5054504602, 10109009204, 20218018408]

約数ペア:

[(1, 20218018408), (2, 10109009204), (4, 5054504602), (7, 2888288344), (8, 2527252301), (14, 1444144172), (19, 1064106232), (28, 722072086), (38, 532053116), (56, 361036043), (76, 266026558), (133, 152015176), (152, 133013279), (266, 76007588), (532, 38003794), (1064, 19001897), (2341, 8636488), (4682, 4318244), (8117, 2490824), (9364, 2159122), (16234, 1245412), (16387, 1233784), (18728, 1079561), (32468, 622706), (32774, 616892), (44479, 454552), (56819, 355832), (64936, 311353), (65548, 308446), (88958, 227276), (113638, 177916), (131096, 154223)]