20515630

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{5683}}^1$

素因数の和:5728

約数の個数: 24

約数和(自身を含む): 38980872

約数和(自身を除く): 18465242

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 5683, 11366, 28415, 56830, 107977, 215954, 539885, 1079770, 2051563, 4103126, 10257815, 20515630]

約数ペア:

[(1, 20515630), (2, 10257815), (5, 4103126), (10, 2051563), (19, 1079770), (38, 539885), (95, 215954), (190, 107977), (361, 56830), (722, 28415), (1805, 11366), (3610, 5683)]