205173812

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 380806272

約数和(自身を除く): 175632460

約数列:

[1, 2, 4, 43, 53, 71, 86, 106, 142, 172, 212, 284, 317, 634, 1268, 2279, 3053, 3763, 4558, 6106, 7526, 9116, 12212, 13631, 15052, 16801, 22507, 27262, 33602, 45014, 54524, 67204, 90028, 161809, 323618, 647236, 722443, 967801, 1192871, 1444886, 1935602, 2385742, 2889772, 3871204, 4771484, 51293453, 102586906, 205173812]

約数ペア:

[(1, 205173812), (2, 102586906), (4, 51293453), (43, 4771484), (53, 3871204), (71, 2889772), (86, 2385742), (106, 1935602), (142, 1444886), (172, 1192871), (212, 967801), (284, 722443), (317, 647236), (634, 323618), (1268, 161809), (2279, 90028), (3053, 67204), (3763, 54524), (4558, 45014), (6106, 33602), (7526, 27262), (9116, 22507), (12212, 16801), (13631, 15052)]