20487536

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{31231}}^1$

素因数の和:31280

約数の個数: 20

約数和(自身を含む): 40664064

約数和(自身を除く): 20176528

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31231, 62462, 124924, 249848, 499696, 1280471, 2560942, 5121884, 10243768, 20487536]

約数ペア:

[(1, 20487536), (2, 10243768), (4, 5121884), (8, 2560942), (16, 1280471), (41, 499696), (82, 249848), (164, 124924), (328, 62462), (656, 31231)]