157240120

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{9803}}^1$

素因数の和:10215

約数の個数: 32

約数和(自身を含む): 354708720

約数和(自身を除く): 197468600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 8020, 9803, 16040, 19606, 39212, 49015, 78424, 98030, 196060, 392120, 3931003, 7862006, 15724012, 19655015, 31448024, 39310030, 78620060, 157240120]

約数ペア:

[(1, 157240120), (2, 78620060), (4, 39310030), (5, 31448024), (8, 19655015), (10, 15724012), (20, 7862006), (40, 3931003), (401, 392120), (802, 196060), (1604, 98030), (2005, 78424), (3208, 49015), (4010, 39212), (8020, 19606), (9803, 16040)]