128478

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:61

約数の個数: 48

約数和(自身を含む): 328320

約数和(自身を除く): 199842

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 23, 38, 42, 46, 49, 57, 69, 98, 114, 133, 138, 147, 161, 266, 294, 322, 399, 437, 483, 798, 874, 931, 966, 1127, 1311, 1862, 2254, 2622, 2793, 3059, 3381, 5586, 6118, 6762, 9177, 18354, 21413, 42826, 64239, 128478]

約数ペア:

[(1, 128478), (2, 64239), (3, 42826), (6, 21413), (7, 18354), (14, 9177), (19, 6762), (21, 6118), (23, 5586), (38, 3381), (42, 3059), (46, 2793), (49, 2622), (57, 2254), (69, 1862), (98, 1311), (114, 1127), (133, 966), (138, 931), (147, 874), (161, 798), (266, 483), (294, 437), (322, 399)]