16382780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19979}}^1$

素因数の和:20029

約数の個数: 24

約数和(自身を含む): 35244720

約数和(自身を除く): 18861940

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 19979, 39958, 79916, 99895, 199790, 399580, 819139, 1638278, 3276556, 4095695, 8191390, 16382780]

約数ペア:

[(1, 16382780), (2, 8191390), (4, 4095695), (5, 3276556), (10, 1638278), (20, 819139), (41, 399580), (82, 199790), (164, 99895), (205, 79916), (410, 39958), (820, 19979)]