40805990

素因数分解:

$2^1\times 5^1\times {\mathrm{193}}^1\times {\mathrm{21143}}^1$

素因数の和:21343

約数の個数: 16

約数和(自身を含む): 73834848

約数和(自身を除く): 33028858

約数列:

[1, 2, 5, 10, 193, 386, 965, 1930, 21143, 42286, 105715, 211430, 4080599, 8161198, 20402995, 40805990]

約数ペア:

[(1, 40805990), (2, 20402995), (5, 8161198), (10, 4080599), (193, 211430), (386, 105715), (965, 42286), (1930, 21143)]