19826920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{937}}^1$

素因数の和:994

約数の個数: 48

約数和(自身を含む): 46684260

約数和(自身を除く): 26857340

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 529, 920, 937, 1058, 1874, 2116, 2645, 3748, 4232, 4685, 5290, 7496, 9370, 10580, 18740, 21160, 21551, 37480, 43102, 86204, 107755, 172408, 215510, 431020, 495673, 862040, 991346, 1982692, 2478365, 3965384, 4956730, 9913460, 19826920]

約数ペア:

[(1, 19826920), (2, 9913460), (4, 4956730), (5, 3965384), (8, 2478365), (10, 1982692), (20, 991346), (23, 862040), (40, 495673), (46, 431020), (92, 215510), (115, 172408), (184, 107755), (230, 86204), (460, 43102), (529, 37480), (920, 21551), (937, 21160), (1058, 18740), (1874, 10580), (2116, 9370), (2645, 7496), (3748, 5290), (4232, 4685)]