22141880

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1423}}^1$

素因数の和:1823

約数の個数: 32

約数和(自身を含む): 49982400

約数和(自身を除く): 27840520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1423, 1556, 1945, 2846, 3112, 3890, 5692, 7115, 7780, 11384, 14230, 15560, 28460, 56920, 553547, 1107094, 2214188, 2767735, 4428376, 5535470, 11070940, 22141880]

約数ペア:

[(1, 22141880), (2, 11070940), (4, 5535470), (5, 4428376), (8, 2767735), (10, 2214188), (20, 1107094), (40, 553547), (389, 56920), (778, 28460), (1423, 15560), (1556, 14230), (1945, 11384), (2846, 7780), (3112, 7115), (3890, 5692)]