28251020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{373}}^1\times {\mathrm{541}}^1$

素因数の和:930

約数の個数: 48

約数和(自身を含む): 68109888

約数和(自身を除く): 39858868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 373, 541, 746, 1082, 1492, 1865, 2164, 2611, 2705, 3730, 3787, 5222, 5410, 7460, 7574, 10444, 10820, 13055, 15148, 18935, 26110, 37870, 52220, 75740, 201793, 403586, 807172, 1008965, 1412551, 2017930, 2825102, 4035860, 5650204, 7062755, 14125510, 28251020]

約数ペア:

[(1, 28251020), (2, 14125510), (4, 7062755), (5, 5650204), (7, 4035860), (10, 2825102), (14, 2017930), (20, 1412551), (28, 1008965), (35, 807172), (70, 403586), (140, 201793), (373, 75740), (541, 52220), (746, 37870), (1082, 26110), (1492, 18935), (1865, 15148), (2164, 13055), (2611, 10820), (2705, 10444), (3730, 7574), (3787, 7460), (5222, 5410)]