20285920

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6673}}^1$

素因数の和:6707

約数の個数: 48

約数和(自身を含む): 50455440

約数和(自身を除く): 30169520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6673, 13346, 26692, 33365, 53384, 66730, 106768, 126787, 133460, 213536, 253574, 266920, 507148, 533840, 633935, 1014296, 1067680, 1267870, 2028592, 2535740, 4057184, 5071480, 10142960, 20285920]

約数ペア:

[(1, 20285920), (2, 10142960), (4, 5071480), (5, 4057184), (8, 2535740), (10, 2028592), (16, 1267870), (19, 1067680), (20, 1014296), (32, 633935), (38, 533840), (40, 507148), (76, 266920), (80, 253574), (95, 213536), (152, 133460), (160, 126787), (190, 106768), (304, 66730), (380, 53384), (608, 33365), (760, 26692), (1520, 13346), (3040, 6673)]