20197780768

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{53777}}^1$

素因数の和:53906

約数の個数: 72

約数和(自身を含む): 44159374476

約数和(自身を除く): 23961593708

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 97, 121, 176, 194, 242, 352, 388, 484, 776, 968, 1067, 1552, 1936, 2134, 3104, 3872, 4268, 8536, 11737, 17072, 23474, 34144, 46948, 53777, 93896, 107554, 187792, 215108, 375584, 430216, 591547, 860432, 1183094, 1720864, 2366188, 4732376, 5216369, 6507017, 9464752, 10432738, 13014034, 18929504, 20865476, 26028068, 41730952, 52056136, 57380059, 83461904, 104112272, 114760118, 166923808, 208224544, 229520236, 459040472, 631180649, 918080944, 1262361298, 1836161888, 2524722596, 5049445192, 10098890384, 20197780768]

約数ペア:

[(1, 20197780768), (2, 10098890384), (4, 5049445192), (8, 2524722596), (11, 1836161888), (16, 1262361298), (22, 918080944), (32, 631180649), (44, 459040472), (88, 229520236), (97, 208224544), (121, 166923808), (176, 114760118), (194, 104112272), (242, 83461904), (352, 57380059), (388, 52056136), (484, 41730952), (776, 26028068), (968, 20865476), (1067, 18929504), (1552, 13014034), (1936, 10432738), (2134, 9464752), (3104, 6507017), (3872, 5216369), (4268, 4732376), (8536, 2366188), (11737, 1720864), (17072, 1183094), (23474, 860432), (34144, 591547), (46948, 430216), (53777, 375584), (93896, 215108), (107554, 187792)]