87109820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{683}}^1\times {\mathrm{911}}^1$

素因数の和:1610

約数の個数: 48

約数和(自身を含む): 209599488

約数和(自身を除く): 122489668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 683, 911, 1366, 1822, 2732, 3415, 3644, 4555, 4781, 6377, 6830, 9110, 9562, 12754, 13660, 18220, 19124, 23905, 25508, 31885, 47810, 63770, 95620, 127540, 622213, 1244426, 2488852, 3111065, 4355491, 6222130, 8710982, 12444260, 17421964, 21777455, 43554910, 87109820]

約数ペア:

[(1, 87109820), (2, 43554910), (4, 21777455), (5, 17421964), (7, 12444260), (10, 8710982), (14, 6222130), (20, 4355491), (28, 3111065), (35, 2488852), (70, 1244426), (140, 622213), (683, 127540), (911, 95620), (1366, 63770), (1822, 47810), (2732, 31885), (3415, 25508), (3644, 23905), (4555, 19124), (4781, 18220), (6377, 13660), (6830, 12754), (9110, 9562)]