257621476

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{195761}}^1$

素因数の和:195819

約数の個数: 24

約数和(自身を含む): 526208256

約数和(自身を除く): 268586780

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 195761, 391522, 783044, 1370327, 2740654, 5481308, 9200767, 18401534, 36803068, 64405369, 128810738, 257621476]

約数ペア:

[(1, 257621476), (2, 128810738), (4, 64405369), (7, 36803068), (14, 18401534), (28, 9200767), (47, 5481308), (94, 2740654), (188, 1370327), (329, 783044), (658, 391522), (1316, 195761)]