121325720

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{27827}}^1$

素因数の和:27947

約数の個数: 32

約数和(自身を含む): 275497200

約数和(自身を除く): 154171480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 27827, 55654, 111308, 139135, 222616, 278270, 556540, 1113080, 3033143, 6066286, 12132572, 15165715, 24265144, 30331430, 60662860, 121325720]

約数ペア:

[(1, 121325720), (2, 60662860), (4, 30331430), (5, 24265144), (8, 15165715), (10, 12132572), (20, 6066286), (40, 3033143), (109, 1113080), (218, 556540), (436, 278270), (545, 222616), (872, 139135), (1090, 111308), (2180, 55654), (4360, 27827)]