30780080

素因数分解:

$2^4\times 5^1\times {\mathrm{384751}}^1$

素因数の和:384764

約数の個数: 20

約数和(自身を含む): 71563872

約数和(自身を除く): 40783792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 384751, 769502, 1539004, 1923755, 3078008, 3847510, 6156016, 7695020, 15390040, 30780080]

約数ペア:

[(1, 30780080), (2, 15390040), (4, 7695020), (5, 6156016), (8, 3847510), (10, 3078008), (16, 1923755), (20, 1539004), (40, 769502), (80, 384751)]