18471320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1609}}^1$

素因数の和:1668

約数の個数: 64

約数和(自身を含む): 48686400

約数和(自身を除く): 30215080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 140, 164, 205, 280, 287, 328, 410, 574, 820, 1148, 1435, 1609, 1640, 2296, 2870, 3218, 5740, 6436, 8045, 11263, 11480, 12872, 16090, 22526, 32180, 45052, 56315, 64360, 65969, 90104, 112630, 131938, 225260, 263876, 329845, 450520, 461783, 527752, 659690, 923566, 1319380, 1847132, 2308915, 2638760, 3694264, 4617830, 9235660, 18471320]

約数ペア:

[(1, 18471320), (2, 9235660), (4, 4617830), (5, 3694264), (7, 2638760), (8, 2308915), (10, 1847132), (14, 1319380), (20, 923566), (28, 659690), (35, 527752), (40, 461783), (41, 450520), (56, 329845), (70, 263876), (82, 225260), (140, 131938), (164, 112630), (205, 90104), (280, 65969), (287, 64360), (328, 56315), (410, 45052), (574, 32180), (820, 22526), (1148, 16090), (1435, 12872), (1609, 11480), (1640, 11263), (2296, 8045), (2870, 6436), (3218, 5740)]