208907510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{12487}}^1$

素因数の和:12740

約数の個数: 32

約数和(自身を含む): 431585280

約数和(自身を除く): 222677770

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 239, 478, 1195, 1673, 2390, 3346, 8365, 12487, 16730, 24974, 62435, 87409, 124870, 174818, 437045, 874090, 2984393, 5968786, 14921965, 20890751, 29843930, 41781502, 104453755, 208907510]

約数ペア:

[(1, 208907510), (2, 104453755), (5, 41781502), (7, 29843930), (10, 20890751), (14, 14921965), (35, 5968786), (70, 2984393), (239, 874090), (478, 437045), (1195, 174818), (1673, 124870), (2390, 87409), (3346, 62435), (8365, 24974), (12487, 16730)]