256771358

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{5009}}^1$

素因数の和:5120

約数の個数: 24

約数和(自身を含む): 412302960

約数和(自身を除く): 155531602

約数列:

[1, 2, 19, 38, 71, 142, 361, 722, 1349, 2698, 5009, 10018, 25631, 51262, 95171, 190342, 355639, 711278, 1808249, 3616498, 6757141, 13514282, 128385679, 256771358]

約数ペア:

[(1, 256771358), (2, 128385679), (19, 13514282), (38, 6757141), (71, 3616498), (142, 1808249), (361, 711278), (722, 355639), (1349, 190342), (2698, 95171), (5009, 51262), (10018, 25631)]