80209120

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12227}}^1$

素因数の和:12283

約数の個数: 48

約数和(自身を含む): 194131728

約数和(自身を除く): 113922608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 6560, 12227, 24454, 48908, 61135, 97816, 122270, 195632, 244540, 391264, 489080, 501307, 978160, 1002614, 1956320, 2005228, 2506535, 4010456, 5013070, 8020912, 10026140, 16041824, 20052280, 40104560, 80209120]

約数ペア:

[(1, 80209120), (2, 40104560), (4, 20052280), (5, 16041824), (8, 10026140), (10, 8020912), (16, 5013070), (20, 4010456), (32, 2506535), (40, 2005228), (41, 1956320), (80, 1002614), (82, 978160), (160, 501307), (164, 489080), (205, 391264), (328, 244540), (410, 195632), (656, 122270), (820, 97816), (1312, 61135), (1640, 48908), (3280, 24454), (6560, 12227)]