31376120

素因数分解:

$2^3\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1747}}^1$

素因数の和:2207

約数の個数: 32

約数和(自身を含む): 70794000

約数和(自身を除く): 39417880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 449, 898, 1747, 1796, 2245, 3494, 3592, 4490, 6988, 8735, 8980, 13976, 17470, 17960, 34940, 69880, 784403, 1568806, 3137612, 3922015, 6275224, 7844030, 15688060, 31376120]

約数ペア:

[(1, 31376120), (2, 15688060), (4, 7844030), (5, 6275224), (8, 3922015), (10, 3137612), (20, 1568806), (40, 784403), (449, 69880), (898, 34940), (1747, 17960), (1796, 17470), (2245, 13976), (3494, 8980), (3592, 8735), (4490, 6988)]