2791001680

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{3169}}^1$

素因数の和:3392

約数の個数: 80

約数和(自身を含む): 6615536400

約数和(自身を除く): 3824534720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 109, 202, 218, 404, 436, 505, 545, 808, 872, 1010, 1090, 1616, 1744, 2020, 2180, 3169, 4040, 4360, 6338, 8080, 8720, 11009, 12676, 15845, 22018, 25352, 31690, 44036, 50704, 55045, 63380, 88072, 110090, 126760, 176144, 220180, 253520, 320069, 345421, 440360, 640138, 690842, 880720, 1280276, 1381684, 1600345, 1727105, 2560552, 2763368, 3200690, 3454210, 5121104, 5526736, 6401380, 6908420, 12802760, 13816840, 25605520, 27633680, 34887521, 69775042, 139550084, 174437605, 279100168, 348875210, 558200336, 697750420, 1395500840, 2791001680]

約数ペア:

[(1, 2791001680), (2, 1395500840), (4, 697750420), (5, 558200336), (8, 348875210), (10, 279100168), (16, 174437605), (20, 139550084), (40, 69775042), (80, 34887521), (101, 27633680), (109, 25605520), (202, 13816840), (218, 12802760), (404, 6908420), (436, 6401380), (505, 5526736), (545, 5121104), (808, 3454210), (872, 3200690), (1010, 2763368), (1090, 2560552), (1616, 1727105), (1744, 1600345), (2020, 1381684), (2180, 1280276), (3169, 880720), (4040, 690842), (4360, 640138), (6338, 440360), (8080, 345421), (8720, 320069), (11009, 253520), (12676, 220180), (15845, 176144), (22018, 126760), (25352, 110090), (31690, 88072), (44036, 63380), (50704, 55045)]