209969080

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{141871}}^1$

素因数の和:141919

約数の個数: 32

約数和(自身を含む): 485202240

約数和(自身を除く): 275233160

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 141871, 283742, 567484, 709355, 1134968, 1418710, 2837420, 5249227, 5674840, 10498454, 20996908, 26246135, 41993816, 52492270, 104984540, 209969080]

約数ペア:

[(1, 209969080), (2, 104984540), (4, 52492270), (5, 41993816), (8, 26246135), (10, 20996908), (20, 10498454), (37, 5674840), (40, 5249227), (74, 2837420), (148, 1418710), (185, 1134968), (296, 709355), (370, 567484), (740, 283742), (1480, 141871)]