82865720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{295949}}^1$

素因数の和:295967

約数の個数: 32

約数和(自身を含む): 213084000

約数和(自身を除く): 130218280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 295949, 591898, 1183796, 1479745, 2071643, 2367592, 2959490, 4143286, 5918980, 8286572, 10358215, 11837960, 16573144, 20716430, 41432860, 82865720]

約数ペア:

[(1, 82865720), (2, 41432860), (4, 20716430), (5, 16573144), (7, 11837960), (8, 10358215), (10, 8286572), (14, 5918980), (20, 4143286), (28, 2959490), (35, 2367592), (40, 2071643), (56, 1479745), (70, 1183796), (140, 591898), (280, 295949)]