153431480

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{19471}}^1$

素因数の和:19679

約数の個数: 32

約数和(自身を含む): 346991040

約数和(自身を除く): 193559560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 19471, 38942, 77884, 97355, 155768, 194710, 389420, 778840, 3835787, 7671574, 15343148, 19178935, 30686296, 38357870, 76715740, 153431480]

約数ペア:

[(1, 153431480), (2, 76715740), (4, 38357870), (5, 30686296), (8, 19178935), (10, 15343148), (20, 7671574), (40, 3835787), (197, 778840), (394, 389420), (788, 194710), (985, 155768), (1576, 97355), (1970, 77884), (3940, 38942), (7880, 19471)]