19962128

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:363

約数の個数: 40

約数和(自身を含む): 39877656

約数和(自身を除く): 19915528

約数列:

[1, 2, 4, 8, 16, 61, 113, 122, 181, 226, 244, 362, 452, 488, 724, 904, 976, 1448, 1808, 2896, 6893, 11041, 13786, 20453, 22082, 27572, 40906, 44164, 55144, 81812, 88328, 110288, 163624, 176656, 327248, 1247633, 2495266, 4990532, 9981064, 19962128]

約数ペア:

[(1, 19962128), (2, 9981064), (4, 4990532), (8, 2495266), (16, 1247633), (61, 327248), (113, 176656), (122, 163624), (181, 110288), (226, 88328), (244, 81812), (362, 55144), (452, 44164), (488, 40906), (724, 27572), (904, 22082), (976, 20453), (1448, 13786), (1808, 11041), (2896, 6893)]