131184320

素因数分解:

$2^6\times 5^1\times {\mathrm{409951}}^1$

素因数の和:409968

約数の個数: 28

約数和(自身を含む): 312383424

約数和(自身を除く): 181199104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 409951, 819902, 1639804, 2049755, 3279608, 4099510, 6559216, 8199020, 13118432, 16398040, 26236864, 32796080, 65592160, 131184320]

約数ペア:

[(1, 131184320), (2, 65592160), (4, 32796080), (5, 26236864), (8, 16398040), (10, 13118432), (16, 8199020), (20, 6559216), (32, 4099510), (40, 3279608), (64, 2049755), (80, 1639804), (160, 819902), (320, 409951)]