161473540

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{8147}}^1$

素因数の和:9147

約数の個数: 24

約数和(自身を含む): 339478272

約数和(自身を除く): 178004732

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3964, 4955, 8147, 9910, 16294, 19820, 32588, 40735, 81470, 162940, 8073677, 16147354, 32294708, 40368385, 80736770, 161473540]

約数ペア:

[(1, 161473540), (2, 80736770), (4, 40368385), (5, 32294708), (10, 16147354), (20, 8073677), (991, 162940), (1982, 81470), (3964, 40735), (4955, 32588), (8147, 19820), (9910, 16294)]