239687380

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{42649}}^1$

素因数の和:42939

約数の個数: 24

約数和(自身を含む): 505146600

約数和(自身を除く): 265459220

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 42649, 85298, 170596, 213245, 426490, 852980, 11984369, 23968738, 47937476, 59921845, 119843690, 239687380]

約数ペア:

[(1, 239687380), (2, 119843690), (4, 59921845), (5, 47937476), (10, 23968738), (20, 11984369), (281, 852980), (562, 426490), (1124, 213245), (1405, 170596), (2810, 85298), (5620, 42649)]