2168678920

素因数分解:

$2^3\times 5^1\times {\mathrm{54216973}}^1$

素因数の和:54216984

約数の個数: 16

約数和(自身を含む): 4879527660

約数和(自身を除く): 2710848740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 54216973, 108433946, 216867892, 271084865, 433735784, 542169730, 1084339460, 2168678920]

約数ペア:

[(1, 2168678920), (2, 1084339460), (4, 542169730), (5, 433735784), (8, 271084865), (10, 216867892), (20, 108433946), (40, 54216973)]