15562780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{18979}}^1$

素因数の和:19029

約数の個数: 24

約数和(自身を含む): 33480720

約数和(自身を除く): 17917940

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 18979, 37958, 75916, 94895, 189790, 379580, 778139, 1556278, 3112556, 3890695, 7781390, 15562780]

約数ペア:

[(1, 15562780), (2, 7781390), (4, 3890695), (5, 3112556), (10, 1556278), (20, 778139), (41, 379580), (82, 189790), (164, 94895), (205, 75916), (410, 37958), (820, 18979)]