20801530

素因数分解:

$2^1\times 5^1\times {\mathrm{571}}^1\times {\mathrm{3643}}^1$

素因数の和:4221

約数の個数: 16

約数和(自身を含む): 37518624

約数和(自身を除く): 16717094

約数列:

[1, 2, 5, 10, 571, 1142, 2855, 3643, 5710, 7286, 18215, 36430, 2080153, 4160306, 10400765, 20801530]

約数ペア:

[(1, 20801530), (2, 10400765), (5, 4160306), (10, 2080153), (571, 36430), (1142, 18215), (2855, 7286), (3643, 5710)]