28397900

素因数分解:

$2^2\times 5^2\times {\mathrm{283979}}^1$

素因数の和:283993

約数の個数: 18

約数和(自身を含む): 61623660

約数和(自身を除く): 33225760

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 283979, 567958, 1135916, 1419895, 2839790, 5679580, 7099475, 14198950, 28397900]

約数ペア:

[(1, 28397900), (2, 14198950), (4, 7099475), (5, 5679580), (10, 2839790), (20, 1419895), (25, 1135916), (50, 567958), (100, 283979)]