1605940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11471}}^1$

素因数の和:11487

約数の個数: 24

約数和(自身を含む): 3854592

約数和(自身を除く): 2248652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 11471, 22942, 45884, 57355, 80297, 114710, 160594, 229420, 321188, 401485, 802970, 1605940]

約数ペア:

[(1, 1605940), (2, 802970), (4, 401485), (5, 321188), (7, 229420), (10, 160594), (14, 114710), (20, 80297), (28, 57355), (35, 45884), (70, 22942), (140, 11471)]