421363960

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{20219}}^1$

素因数の和:20751

約数の個数: 32

約数和(自身を含む): 949935600

約数和(自身を除く): 528571640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 4168, 5210, 10420, 20219, 20840, 40438, 80876, 101095, 161752, 202190, 404380, 808760, 10534099, 21068198, 42136396, 52670495, 84272792, 105340990, 210681980, 421363960]

約数ペア:

[(1, 421363960), (2, 210681980), (4, 105340990), (5, 84272792), (8, 52670495), (10, 42136396), (20, 21068198), (40, 10534099), (521, 808760), (1042, 404380), (2084, 202190), (2605, 161752), (4168, 101095), (5210, 80876), (10420, 40438), (20219, 20840)]