18193540

素因数分解:

$2^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1823}}^1$

素因数の和:2331

約数の個数: 24

約数和(自身を含む): 38304000

約数和(自身を除く): 20110460

約数列:

[1, 2, 4, 5, 10, 20, 499, 998, 1823, 1996, 2495, 3646, 4990, 7292, 9115, 9980, 18230, 36460, 909677, 1819354, 3638708, 4548385, 9096770, 18193540]

約数ペア:

[(1, 18193540), (2, 9096770), (4, 4548385), (5, 3638708), (10, 1819354), (20, 909677), (499, 36460), (998, 18230), (1823, 9980), (1996, 9115), (2495, 7292), (3646, 4990)]