2785580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 6785856

約数和(自身を除く): 4000276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 197, 202, 394, 404, 505, 707, 788, 985, 1010, 1379, 1414, 1970, 2020, 2758, 2828, 3535, 3940, 5516, 6895, 7070, 13790, 14140, 19897, 27580, 39794, 79588, 99485, 139279, 198970, 278558, 397940, 557116, 696395, 1392790, 2785580]

約数ペア:

[(1, 2785580), (2, 1392790), (4, 696395), (5, 557116), (7, 397940), (10, 278558), (14, 198970), (20, 139279), (28, 99485), (35, 79588), (70, 39794), (101, 27580), (140, 19897), (197, 14140), (202, 13790), (394, 7070), (404, 6895), (505, 5516), (707, 3940), (788, 3535), (985, 2828), (1010, 2758), (1379, 2020), (1414, 1970)]