166996840

素因数分解:

$2^3\times 5^1\times {\mathrm{907}}^1\times {\mathrm{4603}}^1$

素因数の和:5521

約数の個数: 32

約数和(自身を含む): 376238880

約数和(自身を除く): 209242040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 907, 1814, 3628, 4535, 4603, 7256, 9070, 9206, 18140, 18412, 23015, 36280, 36824, 46030, 92060, 184120, 4174921, 8349842, 16699684, 20874605, 33399368, 41749210, 83498420, 166996840]

約数ペア:

[(1, 166996840), (2, 83498420), (4, 41749210), (5, 33399368), (8, 20874605), (10, 16699684), (20, 8349842), (40, 4174921), (907, 184120), (1814, 92060), (3628, 46030), (4535, 36824), (4603, 36280), (7256, 23015), (9070, 18412), (9206, 18140)]