19980256

素因数分解:

$2^5\times {\mathrm{293}}^1\times {\mathrm{2131}}^1$

素因数の和:2434

約数の個数: 24

約数和(自身を含む): 39488904

約数和(自身を除く): 19508648

約数列:

[1, 2, 4, 8, 16, 32, 293, 586, 1172, 2131, 2344, 4262, 4688, 8524, 9376, 17048, 34096, 68192, 624383, 1248766, 2497532, 4995064, 9990128, 19980256]

約数ペア:

[(1, 19980256), (2, 9990128), (4, 4995064), (8, 2497532), (16, 1248766), (32, 624383), (293, 68192), (586, 34096), (1172, 17048), (2131, 9376), (2344, 8524), (4262, 4688)]