28977980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{35339}}^1$

素因数の和:35389

約数の個数: 24

約数和(自身を含む): 62339760

約数和(自身を除く): 33361780

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 35339, 70678, 141356, 176695, 353390, 706780, 1448899, 2897798, 5795596, 7244495, 14488990, 28977980]

約数ペア:

[(1, 28977980), (2, 14488990), (4, 7244495), (5, 5795596), (10, 2897798), (20, 1448899), (41, 706780), (82, 353390), (164, 176695), (205, 141356), (410, 70678), (820, 35339)]