8749820

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1091}}^1$

素因数の和:1501

約数の個数: 24

約数和(自身を含む): 18437328

約数和(自身を除く): 9687508

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1091, 1604, 2005, 2182, 4010, 4364, 5455, 8020, 10910, 21820, 437491, 874982, 1749964, 2187455, 4374910, 8749820]

約数ペア:

[(1, 8749820), (2, 4374910), (4, 2187455), (5, 1749964), (10, 874982), (20, 437491), (401, 21820), (802, 10910), (1091, 8020), (1604, 5455), (2005, 4364), (2182, 4010)]