72126800

素因数分解:

$2^4\times 5^2\times {\mathrm{180317}}^1$

素因数の和:180335

約数の個数: 30

約数和(自身を含む): 173285598

約数和(自身を除く): 101158798

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 180317, 360634, 721268, 901585, 1442536, 1803170, 2885072, 3606340, 4507925, 7212680, 9015850, 14425360, 18031700, 36063400, 72126800]

約数ペア:

[(1, 72126800), (2, 36063400), (4, 18031700), (5, 14425360), (8, 9015850), (10, 7212680), (16, 4507925), (20, 3606340), (25, 2885072), (40, 1803170), (50, 1442536), (80, 901585), (100, 721268), (200, 360634), (400, 180317)]