664376128

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{25759}}^1$

素因数の和:25815

約数の個数: 56

約数和(自身を含む): 1465640960

約数和(自身を除く): 801264832

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 208, 248, 403, 416, 496, 806, 832, 992, 1612, 1984, 3224, 6448, 12896, 25759, 25792, 51518, 103036, 206072, 334867, 412144, 669734, 798529, 824288, 1339468, 1597058, 1648576, 2678936, 3194116, 5357872, 6388232, 10380877, 10715744, 12776464, 20761754, 21431488, 25552928, 41523508, 51105856, 83047016, 166094032, 332188064, 664376128]

約数ペア:

[(1, 664376128), (2, 332188064), (4, 166094032), (8, 83047016), (13, 51105856), (16, 41523508), (26, 25552928), (31, 21431488), (32, 20761754), (52, 12776464), (62, 10715744), (64, 10380877), (104, 6388232), (124, 5357872), (208, 3194116), (248, 2678936), (403, 1648576), (416, 1597058), (496, 1339468), (806, 824288), (832, 798529), (992, 669734), (1612, 412144), (1984, 334867), (3224, 206072), (6448, 103036), (12896, 51518), (25759, 25792)]