168108520

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{38557}}^1$

素因数の和:38677

約数の個数: 32

約数和(自身を含む): 381724200

約数和(自身を除く): 213615680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 38557, 77114, 154228, 192785, 308456, 385570, 771140, 1542280, 4202713, 8405426, 16810852, 21013565, 33621704, 42027130, 84054260, 168108520]

約数ペア:

[(1, 168108520), (2, 84054260), (4, 42027130), (5, 33621704), (8, 21013565), (10, 16810852), (20, 8405426), (40, 4202713), (109, 1542280), (218, 771140), (436, 385570), (545, 308456), (872, 192785), (1090, 154228), (2180, 77114), (4360, 38557)]