30640520

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{7159}}^1$

素因数の和:7277

約数の個数: 32

約数和(自身を含む): 69595200

約数和(自身を除く): 38954680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 7159, 14318, 28636, 35795, 57272, 71590, 143180, 286360, 766013, 1532026, 3064052, 3830065, 6128104, 7660130, 15320260, 30640520]

約数ペア:

[(1, 30640520), (2, 15320260), (4, 7660130), (5, 6128104), (8, 3830065), (10, 3064052), (20, 1532026), (40, 766013), (107, 286360), (214, 143180), (428, 71590), (535, 57272), (856, 35795), (1070, 28636), (2140, 14318), (4280, 7159)]