18048920

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{691}}^1$

素因数の和:1355

約数の個数: 32

約数和(自身を含む): 40731120

約数和(自身を除く): 22682200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 691, 1306, 1382, 2612, 2764, 3265, 3455, 5224, 5528, 6530, 6910, 13060, 13820, 26120, 27640, 451223, 902446, 1804892, 2256115, 3609784, 4512230, 9024460, 18048920]

約数ペア:

[(1, 18048920), (2, 9024460), (4, 4512230), (5, 3609784), (8, 2256115), (10, 1804892), (20, 902446), (40, 451223), (653, 27640), (691, 26120), (1306, 13820), (1382, 13060), (2612, 6910), (2764, 6530), (3265, 5528), (3455, 5224)]