204865120

素因数分解:

$2^5\times 5^1\times {\mathrm{1280407}}^1$

素因数の和:1280422

約数の個数: 24

約数和(自身を含む): 483994224

約数和(自身を除く): 279129104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1280407, 2560814, 5121628, 6402035, 10243256, 12804070, 20486512, 25608140, 40973024, 51216280, 102432560, 204865120]

約数ペア:

[(1, 204865120), (2, 102432560), (4, 51216280), (5, 40973024), (8, 25608140), (10, 20486512), (16, 12804070), (20, 10243256), (32, 6402035), (40, 5121628), (80, 2560814), (160, 1280407)]