155831788

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{40039}}^1$

素因数の和:40189

約数の個数: 24

約数和(自身を含む): 313913600

約数和(自身を除く): 158081812

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 40039, 80078, 160156, 280273, 560546, 1121092, 5565421, 11130842, 22261684, 38957947, 77915894, 155831788]

約数ペア:

[(1, 155831788), (2, 77915894), (4, 38957947), (7, 22261684), (14, 11130842), (28, 5565421), (139, 1121092), (278, 560546), (556, 280273), (973, 160156), (1946, 80078), (3892, 40039)]