19151540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13487}}^1$

素因数の和:13567

約数の個数: 24

約数和(自身を含む): 40787712

約数和(自身を除く): 21636172

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 13487, 26974, 53948, 67435, 134870, 269740, 957577, 1915154, 3830308, 4787885, 9575770, 19151540]

約数ペア:

[(1, 19151540), (2, 9575770), (4, 4787885), (5, 3830308), (10, 1915154), (20, 957577), (71, 269740), (142, 134870), (284, 67435), (355, 53948), (710, 26974), (1420, 13487)]