649718860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{45949}}^1$

素因数の和:46066

約数の個数: 48

約数和(自身を含む): 1574798400

約数和(自身を除く): 925079540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 3535, 7070, 14140, 45949, 91898, 183796, 229745, 321643, 459490, 643286, 918980, 1286572, 1608215, 3216430, 4640849, 6432860, 9281698, 18563396, 23204245, 32485943, 46408490, 64971886, 92816980, 129943772, 162429715, 324859430, 649718860]

約数ペア:

[(1, 649718860), (2, 324859430), (4, 162429715), (5, 129943772), (7, 92816980), (10, 64971886), (14, 46408490), (20, 32485943), (28, 23204245), (35, 18563396), (70, 9281698), (101, 6432860), (140, 4640849), (202, 3216430), (404, 1608215), (505, 1286572), (707, 918980), (1010, 643286), (1414, 459490), (2020, 321643), (2828, 229745), (3535, 183796), (7070, 91898), (14140, 45949)]