128041256

素因数分解:

$2^3\times 7^1\times {\mathrm{421}}^1\times {\mathrm{5431}}^1$

素因数の和:5865

約数の個数: 32

約数和(自身を含む): 275076480

約数和(自身を除く): 147035224

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 421, 842, 1684, 2947, 3368, 5431, 5894, 10862, 11788, 21724, 23576, 38017, 43448, 76034, 152068, 304136, 2286451, 4572902, 9145804, 16005157, 18291608, 32010314, 64020628, 128041256]

約数ペア:

[(1, 128041256), (2, 64020628), (4, 32010314), (7, 18291608), (8, 16005157), (14, 9145804), (28, 4572902), (56, 2286451), (421, 304136), (842, 152068), (1684, 76034), (2947, 43448), (3368, 38017), (5431, 23576), (5894, 21724), (10862, 11788)]