256210880

素因数分解:

$2^6\times 5^1\times {\mathrm{800659}}^1$

素因数の和:800676

約数の個数: 28

約数和(自身を含む): 610102920

約数和(自身を除く): 353892040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 800659, 1601318, 3202636, 4003295, 6405272, 8006590, 12810544, 16013180, 25621088, 32026360, 51242176, 64052720, 128105440, 256210880]

約数ペア:

[(1, 256210880), (2, 128105440), (4, 64052720), (5, 51242176), (8, 32026360), (10, 25621088), (16, 16013180), (20, 12810544), (32, 8006590), (40, 6405272), (64, 4003295), (80, 3202636), (160, 1601318), (320, 800659)]