15720488

素因数分解:

$2^3\times 7^1\times {\mathrm{347}}^1\times {\mathrm{809}}^1$

素因数の和:1169

約数の個数: 32

約数和(自身を含む): 33825600

約数和(自身を除く): 18105112

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 347, 694, 809, 1388, 1618, 2429, 2776, 3236, 4858, 5663, 6472, 9716, 11326, 19432, 22652, 45304, 280723, 561446, 1122892, 1965061, 2245784, 3930122, 7860244, 15720488]

約数ペア:

[(1, 15720488), (2, 7860244), (4, 3930122), (7, 2245784), (8, 1965061), (14, 1122892), (28, 561446), (56, 280723), (347, 45304), (694, 22652), (809, 19432), (1388, 11326), (1618, 9716), (2429, 6472), (2776, 5663), (3236, 4858)]