20512690536

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{441247}}^1$

素因数の和:441418

約数の個数: 64

約数和(自身を含む): 55597248000

約数和(自身を除く): 35084557464

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 149, 156, 298, 312, 447, 596, 894, 1192, 1788, 1937, 3576, 3874, 5811, 7748, 11622, 15496, 23244, 46488, 441247, 882494, 1323741, 1764988, 2647482, 3529976, 5294964, 5736211, 10589928, 11472422, 17208633, 22944844, 34417266, 45889688, 65745803, 68834532, 131491606, 137669064, 197237409, 262983212, 394474818, 525966424, 788949636, 854695439, 1577899272, 1709390878, 2564086317, 3418781756, 5128172634, 6837563512, 10256345268, 20512690536]

約数ペア:

[(1, 20512690536), (2, 10256345268), (3, 6837563512), (4, 5128172634), (6, 3418781756), (8, 2564086317), (12, 1709390878), (13, 1577899272), (24, 854695439), (26, 788949636), (39, 525966424), (52, 394474818), (78, 262983212), (104, 197237409), (149, 137669064), (156, 131491606), (298, 68834532), (312, 65745803), (447, 45889688), (596, 34417266), (894, 22944844), (1192, 17208633), (1788, 11472422), (1937, 10589928), (3576, 5736211), (3874, 5294964), (5811, 3529976), (7748, 2647482), (11622, 1764988), (15496, 1323741), (23244, 882494), (46488, 441247)]