78251920

素因数分解:

$2^4\times 5^1\times {\mathrm{978149}}^1$

素因数の和:978162

約数の個数: 20

約数和(自身を含む): 181935900

約数和(自身を除く): 103683980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 978149, 1956298, 3912596, 4890745, 7825192, 9781490, 15650384, 19562980, 39125960, 78251920]

約数ペア:

[(1, 78251920), (2, 39125960), (4, 19562980), (5, 15650384), (8, 9781490), (10, 7825192), (16, 4890745), (20, 3912596), (40, 1956298), (80, 978149)]