9968225480

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{385171}}^1$

素因数の和:385829

約数の個数: 32

約数和(自身を含む): 22463231040

約数和(自身を除く): 12495005560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2588, 3235, 5176, 6470, 12940, 25880, 385171, 770342, 1540684, 1925855, 3081368, 3851710, 7703420, 15406840, 249205637, 498411274, 996822548, 1246028185, 1993645096, 2492056370, 4984112740, 9968225480]

約数ペア:

[(1, 9968225480), (2, 4984112740), (4, 2492056370), (5, 1993645096), (8, 1246028185), (10, 996822548), (20, 498411274), (40, 249205637), (647, 15406840), (1294, 7703420), (2588, 3851710), (3235, 3081368), (5176, 1925855), (6470, 1540684), (12940, 770342), (25880, 385171)]