20503540

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{3701}}^1$

素因数の和:3987

約数の個数: 24

約数和(自身を含む): 43224552

約数和(自身を除く): 22721012

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 3701, 5540, 7402, 14804, 18505, 37010, 74020, 1025177, 2050354, 4100708, 5125885, 10251770, 20503540]

約数ペア:

[(1, 20503540), (2, 10251770), (4, 5125885), (5, 4100708), (10, 2050354), (20, 1025177), (277, 74020), (554, 37010), (1108, 18505), (1385, 14804), (2770, 7402), (3701, 5540)]