719784580

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1\times {\mathrm{1021}}^1$

素因数の和:1480

約数の個数: 48

約数和(自身を含む): 1532386800

約数和(自身を除く): 812602220

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 349, 404, 505, 698, 1010, 1021, 1396, 1745, 2020, 2042, 3490, 4084, 5105, 6980, 10210, 20420, 35249, 70498, 103121, 140996, 176245, 206242, 352490, 356329, 412484, 515605, 704980, 712658, 1031210, 1425316, 1781645, 2062420, 3563290, 7126580, 35989229, 71978458, 143956916, 179946145, 359892290, 719784580]

約数ペア:

[(1, 719784580), (2, 359892290), (4, 179946145), (5, 143956916), (10, 71978458), (20, 35989229), (101, 7126580), (202, 3563290), (349, 2062420), (404, 1781645), (505, 1425316), (698, 1031210), (1010, 712658), (1021, 704980), (1396, 515605), (1745, 412484), (2020, 356329), (2042, 352490), (3490, 206242), (4084, 176245), (5105, 140996), (6980, 103121), (10210, 70498), (20420, 35249)]