30690040

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7039}}^1$

素因数の和:7159

約数の個数: 32

約数和(自身を含む): 69696000

約数和(自身を除く): 39005960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 7039, 14078, 28156, 35195, 56312, 70390, 140780, 281560, 767251, 1534502, 3069004, 3836255, 6138008, 7672510, 15345020, 30690040]

約数ペア:

[(1, 30690040), (2, 15345020), (4, 7672510), (5, 6138008), (8, 3836255), (10, 3069004), (20, 1534502), (40, 767251), (109, 281560), (218, 140780), (436, 70390), (545, 56312), (872, 35195), (1090, 28156), (2180, 14078), (4360, 7039)]