16720430

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{18787}}^1$

素因数の和:18883

約数の個数: 16

約数和(自身を含む): 30436560

約数和(自身を除く): 13716130

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 18787, 37574, 93935, 187870, 1672043, 3344086, 8360215, 16720430]

約数ペア:

[(1, 16720430), (2, 8360215), (5, 3344086), (10, 1672043), (89, 187870), (178, 93935), (445, 37574), (890, 18787)]