19761080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11489}}^1$

素因数の和:11543

約数の個数: 32

約数和(自身を含む): 45500400

約数和(自身を除く): 25739320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 11489, 22978, 45956, 57445, 91912, 114890, 229780, 459560, 494027, 988054, 1976108, 2470135, 3952216, 4940270, 9880540, 19761080]

約数ペア:

[(1, 19761080), (2, 9880540), (4, 4940270), (5, 3952216), (8, 2470135), (10, 1976108), (20, 988054), (40, 494027), (43, 459560), (86, 229780), (172, 114890), (215, 91912), (344, 57445), (430, 45956), (860, 22978), (1720, 11489)]