20326520

素因数分解:

$2^3\times 5^1\times {\mathrm{547}}^1\times {\mathrm{929}}^1$

素因数の和:1487

約数の個数: 32

約数和(自身を含む): 45867600

約数和(自身を除く): 25541080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547, 929, 1094, 1858, 2188, 2735, 3716, 4376, 4645, 5470, 7432, 9290, 10940, 18580, 21880, 37160, 508163, 1016326, 2032652, 2540815, 4065304, 5081630, 10163260, 20326520]

約数ペア:

[(1, 20326520), (2, 10163260), (4, 5081630), (5, 4065304), (8, 2540815), (10, 2032652), (20, 1016326), (40, 508163), (547, 37160), (929, 21880), (1094, 18580), (1858, 10940), (2188, 9290), (2735, 7432), (3716, 5470), (4376, 4645)]