168550040

素因数分解:

$2^3\times 5^1\times {\mathrm{1657}}^1\times {\mathrm{2543}}^1$

素因数の和:4211

約数の個数: 32

約数和(自身を含む): 379615680

約数和(自身を除く): 211065640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1657, 2543, 3314, 5086, 6628, 8285, 10172, 12715, 13256, 16570, 20344, 25430, 33140, 50860, 66280, 101720, 4213751, 8427502, 16855004, 21068755, 33710008, 42137510, 84275020, 168550040]

約数ペア:

[(1, 168550040), (2, 84275020), (4, 42137510), (5, 33710008), (8, 21068755), (10, 16855004), (20, 8427502), (40, 4213751), (1657, 101720), (2543, 66280), (3314, 50860), (5086, 33140), (6628, 25430), (8285, 20344), (10172, 16570), (12715, 13256)]