30780760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 73807200

約数和(自身を除く): 43026440

約数列:

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

約数ペア:

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