1405720

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{311}}^1$

素因数の和:435

約数の個数: 32

約数和(自身を含む): 3201120

約数和(自身を除く): 1795400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 311, 452, 565, 622, 904, 1130, 1244, 1555, 2260, 2488, 3110, 4520, 6220, 12440, 35143, 70286, 140572, 175715, 281144, 351430, 702860, 1405720]

約数ペア:

[(1, 1405720), (2, 702860), (4, 351430), (5, 281144), (8, 175715), (10, 140572), (20, 70286), (40, 35143), (113, 12440), (226, 6220), (311, 4520), (452, 3110), (565, 2488), (622, 2260), (904, 1555), (1130, 1244)]