157820440

素因数分解:

$2^3\times 5^1\times {\mathrm{547}}^1\times {\mathrm{7213}}^1$

素因数の和:7771

約数の個数: 32

約数和(自身を含む): 355794480

約数和(自身を除く): 197974040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547, 1094, 2188, 2735, 4376, 5470, 7213, 10940, 14426, 21880, 28852, 36065, 57704, 72130, 144260, 288520, 3945511, 7891022, 15782044, 19727555, 31564088, 39455110, 78910220, 157820440]

約数ペア:

[(1, 157820440), (2, 78910220), (4, 39455110), (5, 31564088), (8, 19727555), (10, 15782044), (20, 7891022), (40, 3945511), (547, 288520), (1094, 144260), (2188, 72130), (2735, 57704), (4376, 36065), (5470, 28852), (7213, 21880), (10940, 14426)]