642057616

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{1294471}}^1$

素因数の和:1294510

約数の個数: 20

約数和(自身を含む): 1284116224

約数和(自身を除く): 642058608

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 1294471, 2588942, 5177884, 10355768, 20711536, 40128601, 80257202, 160514404, 321028808, 642057616]

約数ペア:

[(1, 642057616), (2, 321028808), (4, 160514404), (8, 80257202), (16, 40128601), (31, 20711536), (62, 10355768), (124, 5177884), (248, 2588942), (496, 1294471)]