61561520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:534

約数の個数: 80

約数和(自身を含む): 152534880

約数和(自身を除く): 90973360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 101, 152, 190, 202, 304, 380, 401, 404, 505, 760, 802, 808, 1010, 1520, 1604, 1616, 1919, 2005, 2020, 3208, 3838, 4010, 4040, 6416, 7619, 7676, 8020, 8080, 9595, 15238, 15352, 16040, 19190, 30476, 30704, 32080, 38095, 38380, 40501, 60952, 76190, 76760, 81002, 121904, 152380, 153520, 162004, 202505, 304760, 324008, 405010, 609520, 648016, 769519, 810020, 1539038, 1620040, 3078076, 3240080, 3847595, 6156152, 7695190, 12312304, 15390380, 30780760, 61561520]

約数ペア:

[(1, 61561520), (2, 30780760), (4, 15390380), (5, 12312304), (8, 7695190), (10, 6156152), (16, 3847595), (19, 3240080), (20, 3078076), (38, 1620040), (40, 1539038), (76, 810020), (80, 769519), (95, 648016), (101, 609520), (152, 405010), (190, 324008), (202, 304760), (304, 202505), (380, 162004), (401, 153520), (404, 152380), (505, 121904), (760, 81002), (802, 76760), (808, 76190), (1010, 60952), (1520, 40501), (1604, 38380), (1616, 38095), (1919, 32080), (2005, 30704), (2020, 30476), (3208, 19190), (3838, 16040), (4010, 15352), (4040, 15238), (6416, 9595), (7619, 8080), (7676, 8020)]