127748840

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 294053760

約数和(自身を除く): 166304920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 103, 202, 206, 307, 404, 412, 505, 515, 614, 808, 824, 1010, 1030, 1228, 1535, 2020, 2060, 2456, 3070, 4040, 4120, 6140, 10403, 12280, 20806, 31007, 31621, 41612, 52015, 62014, 63242, 83224, 104030, 124028, 126484, 155035, 158105, 208060, 248056, 252968, 310070, 316210, 416120, 620140, 632420, 1240280, 1264840, 3193721, 6387442, 12774884, 15968605, 25549768, 31937210, 63874420, 127748840]

約数ペア:

[(1, 127748840), (2, 63874420), (4, 31937210), (5, 25549768), (8, 15968605), (10, 12774884), (20, 6387442), (40, 3193721), (101, 1264840), (103, 1240280), (202, 632420), (206, 620140), (307, 416120), (404, 316210), (412, 310070), (505, 252968), (515, 248056), (614, 208060), (808, 158105), (824, 155035), (1010, 126484), (1030, 124028), (1228, 104030), (1535, 83224), (2020, 63242), (2060, 62014), (2456, 52015), (3070, 41612), (4040, 31621), (4120, 31007), (6140, 20806), (10403, 12280)]