2019021800

素因数分解:

$2^3\times 5^2\times {\mathrm{641}}^1\times {\mathrm{15749}}^1$

素因数の和:16406

約数の個数: 48

約数和(自身を含む): 4701847500

約数和(自身を除く): 2682825700

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 641, 1282, 2564, 3205, 5128, 6410, 12820, 15749, 16025, 25640, 31498, 32050, 62996, 64100, 78745, 125992, 128200, 157490, 314980, 393725, 629960, 787450, 1574900, 3149800, 10095109, 20190218, 40380436, 50475545, 80760872, 100951090, 201902180, 252377725, 403804360, 504755450, 1009510900, 2019021800]

約数ペア:

[(1, 2019021800), (2, 1009510900), (4, 504755450), (5, 403804360), (8, 252377725), (10, 201902180), (20, 100951090), (25, 80760872), (40, 50475545), (50, 40380436), (100, 20190218), (200, 10095109), (641, 3149800), (1282, 1574900), (2564, 787450), (3205, 629960), (5128, 393725), (6410, 314980), (12820, 157490), (15749, 128200), (16025, 125992), (25640, 78745), (31498, 64100), (32050, 62996)]