20616565528

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{157}}^1\times {\mathrm{97127}}^1$

素因数の和:97316

約数の個数: 48

約数和(自身を含む): 42125384880

約数和(自身を除く): 21508819352

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 157, 169, 314, 338, 628, 676, 1256, 1352, 2041, 4082, 8164, 16328, 26533, 53066, 97127, 106132, 194254, 212264, 388508, 777016, 1262651, 2525302, 5050604, 10101208, 15248939, 16414463, 30497878, 32828926, 60995756, 65657852, 121991512, 131315704, 198236207, 396472414, 792944828, 1585889656, 2577070691, 5154141382, 10308282764, 20616565528]

約数ペア:

[(1, 20616565528), (2, 10308282764), (4, 5154141382), (8, 2577070691), (13, 1585889656), (26, 792944828), (52, 396472414), (104, 198236207), (157, 131315704), (169, 121991512), (314, 65657852), (338, 60995756), (628, 32828926), (676, 30497878), (1256, 16414463), (1352, 15248939), (2041, 10101208), (4082, 5050604), (8164, 2525302), (16328, 1262651), (26533, 777016), (53066, 388508), (97127, 212264), (106132, 194254)]