15390380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 34443360

約数和(自身を除く): 19052980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 380, 401, 404, 505, 802, 1010, 1604, 1919, 2005, 2020, 3838, 4010, 7619, 7676, 8020, 9595, 15238, 19190, 30476, 38095, 38380, 40501, 76190, 81002, 152380, 162004, 202505, 405010, 769519, 810020, 1539038, 3078076, 3847595, 7695190, 15390380]

約数ペア:

[(1, 15390380), (2, 7695190), (4, 3847595), (5, 3078076), (10, 1539038), (19, 810020), (20, 769519), (38, 405010), (76, 202505), (95, 162004), (101, 152380), (190, 81002), (202, 76190), (380, 40501), (401, 38380), (404, 38095), (505, 30476), (802, 19190), (1010, 15238), (1604, 9595), (1919, 8020), (2005, 7676), (2020, 7619), (3838, 4010)]